Crocodile

Subfamily of large reptilian carnivores

Crocodiles

Temporal range: Eocene–Holocene, 46–0 Ma

PreꞒ

File:Nile crocodile head.jpg
Nile crocodile (Crocodylus niloticus)
File:Pangil Crocodile Park Davao City.jpg
Saltwater crocodile (Crocodylus porosus)
Scientific classification
Domain:  | Eukaryota
Kingdom:  | Animalia
Phylum:  | Chordata
Class:  | Reptilia
Clade:  | Archosauromorpha
Clade:  | Archosauriformes
Order:  | Crocodilia
Superfamily:  | Crocodyloidea
Family:  | Crocodylidae
Cuvier, 1807
Type genus
Crocodylus

Laurenti, 1768

Subfamilies

* Crocodylinae
* Osteolaeminae

Crocodiles (family Crocodylidae) or true crocodiles are large semiaquatic reptiles that live throughout the tropics in Africa, Asia, the Americas and Australia. The term crocodile is sometimes used even more loosely to include all extant members of the order Crocodilia, which includes the alligators and caimans (family Alligatoridae), the gharial and false gharial (family Gavialidae) among other extinct taxa.

Although they appear similar, crocodiles, alligators and the gharial belong to separate biological families. The gharial, with its narrow snout, is easier to distinguish, while morphological differences are more difficult to spot in crocodiles and alligators. The most obvious external differences are visible in the head, with crocodiles having narrower and longer heads, with a more V-shaped than a U-shaped snout compared to alligators and caimans. Another obvious trait is that the upper and lower jaws of the crocodiles are the same width, and the teeth in the lower jaw fall along the edge or outside the upper jaw when the mouth is closed; therefore, all teeth are visible, unlike an alligator, which possesses in the upper jaw small depressions into which the lower teeth fit. Also, when the crocodile's mouth is closed, the large fourth tooth in the lower jaw fits into a constriction in the upper jaw. For hard-to-distinguish specimens, the protruding tooth is the most reliable feature to define the species' family.[1] Crocodiles have more webbing on the toes of the hind feet and can better tolerate saltwater due to specialized salt glands for filtering out salt, which are present, but non-functioning, in alligators. Another trait that separates crocodiles from other crocodilians is their much higher levels of aggression.[2]

Crocodile size, morphology, behaviour and ecology differ somewhat among species. However, they have many similarities in these areas as well. All crocodiles are semiaquatic and tend to congregate in freshwater habitats such as rivers, lakes, wetlands and sometimes in brackish water and saltwater. They are carnivorous animals, feeding mostly on vertebrates such as fish, reptiles, birds and mammals, and sometimes on invertebrates such as molluscs and crustaceans, depending on species and age. All crocodiles are tropical species that, unlike alligators, are very sensitive to cold. They separated from other crocodilians during the Eocene epoch, about 55 million years ago.[3] Many species are at the risk of extinction, some being classified as critically endangered.

## Contents

* 1 Etymology
* 2 Species
* 3 Characteristics
* 3.1 Size
* 3.2 Teeth
* 4 Biology and behaviour
* 4.1 Senses
* 4.1.1 Vision
* 4.1.2 Olfaction
* 4.1.3 Hearing
* 4.1.4 Touch
* 4.2 Hunting and diet
* 4.2.1 Bite
* 4.3 Locomotion
* 4.4 Longevity
* 4.5 Social behaviour and vocalization
* 4.6 Reproduction
* 4.7 Cognition
* 5 Taxonomy and phylogeny
* 5.1 Phylogeny
* 6 Relationship with humans
* 6.1 Danger to humans
* 6.2 Crocodile products
* 6.3 In religion
* 6.4 Crocodile tears
* 6.5 The Surabaya Shark and Crocodile
* 6.6 Crocodile (walking)
* 6.7 Fashion
* 7 See also
* 8 References
* 9 Further reading
* 10 External links

## Etymology[edit | edit source]

The word crocodile comes from the Ancient Greek krokódilos (κροκόδιλος) meaning 'lizard', used in the phrase ho krokódilos tou potamoú, "the lizard of the (Nile) river". There are several variant Greek forms of the word attested, including the later form krokódeilos (κροκόδειλος)[4] found cited in many English reference works.[5] In the Koine Greek of Roman times, krokodilos and krokodeilos would have been pronounced identically, and either or both may be the source of the Latinized form crocodīlus used by the ancient Romans. It has been suggested, but it is not certain that the word crocodilos or crocodeilos is a compound of krokè ('pebbles'), and drilos/dreilos ('worm'), although drilos is only attested as a colloquial term for 'penis'.[5] It is ascribed to Herodotus, and supposedly describes the basking habits of the Egyptian crocodile.[6]

The form crocodrillus is attested in Medieval Latin.[5] It is not clear whether this is a medieval corruption or derives from alternative Greco-Latin forms (late Greek corcodrillos and corcodrillion are attested). A (further) corrupted form cocodrille is found in Old French and was borrowed into Middle English as cocodril(le). The Modern English form crocodile was adapted directly from the Classical Latin crocodīlus in the 16th century, replacing the earlier form. The use of -y- in the scientific name Crocodylus (and forms derived from it) is a corruption introduced by Laurenti (1768).

## Species[edit | edit source]

File:Crocodylidae Distribution.png

Distribution of crocodiles

A total of 18 extant species have been recognized. Further genetic study is needed for the confirmation of proposed species under the genus Osteolaemus.

Species name | Image | Distribution | Description/Comments

|
|
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American crocodile (Crocodylus acutus)  | File:Crocodylus acutus mexico 02-edit1.jpg | Throughout the Caribbean Basin, including many of the Caribbean islands and South Florida.  | A larger sized species, with a greyish colour and a prominent V-shaped snout. Prefers brackish water, but also inhabits lower stretches of rivers and true marine environments. This is one of the rare species that exhibits regular sea-going behaviour, which explains the great distribution throughout the Caribbean. It is also found in hypersaline lakes such as Lago Enriquillo, in the Dominican Republic, which has one of the largest populations of this species.[7] Diet consists mostly of aquatic and terrestrial vertebrates. Classified as Vulnerable, but certain local populations under greater threat.
Hall's New Guinea crocodile (Crocodylus halli)  |  | The island of New Guinea, south of the New Guinea Highlands | A smaller species that closely resembles and was long classified under the New Guinea crocodile, which it is now considered to be genetically distinct from. It lives south of the mountain barrier that divides the two species' ranges. It can be physically distinguished from the New Guinea crocodile by its shorter maxilla and enlarged postcranial elements. Cranial elements can still widely vary within the species, with populations from Lake Murray having much wider heads than those from the Aramia River.[8]
Orinoco crocodile (Crocodylus intermedius)  | File:Croc inter.jpg | Colombia and Venezuela | This is a large species with a relatively elongated snout and a pale tan coloration with scattered dark brown markings. Lives primarily in the Orinoco Basin. Despite having a rather narrow snout, preys on a wide variety of vertebrates, including large mammals. It is a Critically Endangered species.
Freshwater crocodile (Crocodylus johnstoni)  | File:Australia Cairns 18.jpg | Northern Australia | A smaller species with a narrow and elongated snout. It has light brown coloration with darker bands on body and tail. Lives in rivers with considerable distance from the sea, to avoid confrontations with saltwater crocodiles. Feeds mostly on fish and other small vertebrates.
Philippine crocodile (Crocodylus mindorensis)  | File:Crocodylus mindorensis basking on a rock in the Disulap River, Barangay Disulap - ZooKeys-266-001-g102.jpg | Endemic to the Philippines | This is a relatively small species with a rather broader snout. It has heavy dorsal armour and a golden-brown colour that darkens as the animal matures. Prefers freshwater habitats and feeds on a variety of small to medium sized vertebrates. This species is Critically Endangered and the most severely threatened species of crocodile.[9]
Morelet's crocodile (Crocodylus moreletii)  | File:Morelets.crocodile.arp.jpg | Atlantic regions of Mexico, Belize and Guatemala | A small to medium sized crocodile with a rather broad snout. It has a dark greyish-brown colour and is found in mostly various freshwater habitats. Feeds on mammals, birds and reptiles. It is listed as Least Concern.
Nile crocodile (Crocodylus niloticus)  | File:Nile croc couple 690V1510 - Flickr - Lip Kee.jpg | Sub-saharan Africa | A large and aggressive species with a broad snout, especially in older animals. It has a dark bronze coloration and darkens as the animal matures. Lives in a variety of freshwater habitats but is also found in brackish water. It is an apex predator that is capable of taking a wide array of African vertebrates, including large ungulates and other predators.[10] This species is listed as Least Concern.
New Guinea crocodile (Crocodylus novaeguineae) | File:Neuguinea-krokodil-0272.jpg | The island of New Guinea, north of the New Guinea Highlands | A smaller species of crocodile with a grey-brown colour and dark brown to black markings on the tail. The young have a narrower V-shaped snout that becomes wider as the animal matures. Prefers freshwater habitats, even though is tolerant to salt water, in order to avoid competition and predation by the saltwater crocodile. This species feeds on small to mid-sized vertebrates.
Mugger crocodile (Crocodylus palustris)  | File:Mugger crocodile Crocodylus palustris (2155269175).jpg | The Indian subcontinent and surrounding countries  | This is a modest sized crocodile with a very broad snout and an alligator-like appearance. It has dark-grey to brown coloration. Enlarged scutes around the neck make it a heavily armoured species. Prefers slow moving rivers, swamps and lakes. It can also be found in coastal swamps but avoids areas populated by saltwater crocodiles.[11] Feeds on a wide array of vertebrates.
Saltwater crocodile (Crocodylus porosus)  | File:Crocodylus porosus 4.jpg | Throughout Southeast Asia, Northern Australia and surrounding waters  | The largest living reptile and most aggressive of all crocodiles. It is a big-headed species and has a relatively broad snout, especially when older. The coloration is pale yellow with black stripes when young but dark greenish-drab coloured as adults. Lives in brackish and marine environments as well as lower stretches of rivers. This species has the greatest distribution of all crocodiles. Tagged specimens showed long-distance marine travelling behaviour. It is the apex predator throughout its range and preys on virtually any animal within its reach. It is classified as Least Concern with several populations under greater risk.[12]
Borneo crocodile (Crocodylus raninus)  |  | Island of Borneo in Southeast Asia | A freshwater species of crocodile that has been considered a synonym of the saltwater crocodile.
Cuban crocodile (Crocodylus rhombifer)  | File:Cuban Crocodile.JPG | Found only in the Zapata Swamp and Isle of Youth of Cuba | It is a small but extremely aggressive species of crocodile that prefers freshwater swamps.[13] The coloration is vibrant even as adults and the scales have a "pebbled" appearance. It is a relatively terrestrial species with agile locomotion on land, and sometimes displays terrestrial hunting. The snout is broad with a thick upper-jaw and large teeth. The unique characteristics and fossil record indicates a rather specialized diet in the past, preying on megafauna such as the giant sloth. This species sometimes displays pack-hunting behaviour, which might have been the key to hunting large species in the past, despite its small size.[14] Today most prey are small to medium sized vertebrates. It is Critically Endangered, and the remaining wild population is under threat of hybridization.[15]
Siamese crocodile (Crocodylus siamensis)  | File:3.06b.jpg | Indonesia, Brunei, East Malaysia and southern Indochina | A fairly small crocodile that prefers freshwater habitats. It has a relatively broad snout and olive-green to dark green coloration. It feeds on a variety of small to mid-sized vertebrates. Listed as Critically Endangered, but might be already extinct in the wild; status is unknown.[16]
West African crocodile (Crocodylus suchus)  | File:Crocodile - Copenhagen Zoo.jpg | Western and Central Africa | Recent studies revealed that this is distinct species from the larger Nile crocodile.[17][18] It has a slightly narrower snout and is much smaller compared to its larger cousin.
Osborn’s dwarf crocodile (Osteolaemus osborni)  | File:Osteolaemus osborni 88103967.jpg | Western Africa | It is the smallest of all living crocodiles. It is a heavily armoured species with uniform black coloration in adults, while juveniles have a lighter brown banding. Lives in the tropical forests of Western Africa. Feeds on small vertebrates and large aquatic invertebrates. It is a fairly terrestrial species and exhibits terrestrial hunting, especially at night.
Dwarf crocodile (Osteolaemus tetraspis)  | File:Dwarf crocodile 01.JPG | Western Africa | It is the smallest of all living crocodiles. It belongs to its own monotypic genus; however, new studies indicate there might be two or even three distinct species.[19] It is a heavily armoured species with uniform black coloration in adults, while juveniles have a lighter brown banding. Lives in the tropical forests of Western Africa. Feeds on small vertebrates and large aquatic invertebrates. It is a fairly terrestrial species and exhibits terrestrial hunting, especially at night. This species is classified as Vulnerable.
West African slender-snouted crocodile (Mecistops cataphractus)  | File:Crocodylus cataphractus faux-gavial d'Afrique2.JPG | Western Africa | A medium sized species with a narrow and elongated snout. Lives in freshwater habitats within tropical forests of the continent. Feeds mostly on fish but also other small to medium sized vertebrates. It is a Critically Endangered species.
Central African slender-snouted crocodile (Mecistops leptorhynchus)  | File:Crocodylus cataphractus 2009.jpg | Central Africa | A medium sized species found in watery areas in dense rainforest. Feeds largely on fish. Insufficient conservation data, but was classified as Critically Endangered when lumped with M. cataphractus, although M. leptorhynchus is doing better in its home range.

For information on Tomistoma or false gharial, that is recently not considered as a true crocodile, see False gharial.

## Characteristics[edit | edit source]

Crocodiles are similar to alligators and caimans; for their common characteristics and differences among them, see Crocodilia.

File:Skull & scutes - Crocodylinae.jpg

Skulls and scutes of American, Nile and Saltwater crocodiles, with post-occipital scutes highlighted in red, nuchal shield in blue and dorsal scutes in green

File:Crocodilelyd5.png

Crocodiles, like dinosaurs, have the abdominal ribs modified into gastralia.

A crocodile's physical traits allow it to be a successful predator. Its external morphology is a sign of its aquatic and predatory lifestyle. Its streamlined body enables it to swim swiftly; it also tucks its feet to the side while swimming, making it faster by decreasing water resistance. Crocodiles have webbed feet which, though not used to propel them through the water, allow them to make fast turns and sudden moves in the water or initiate swimming. Webbed feet are an advantage in shallow water, where the animals sometimes move around by walking. Crocodiles have a palatal flap, a rigid tissue at the back of the mouth that blocks the entry of water. The palate has a special path from the nostril to the glottis that bypasses the mouth. The nostrils are closed during submergence.

Like other archosaurs, crocodilians are diapsid, although their post-temporal fenestrae are reduced. The walls of the braincase are bony but lack supratemporal and postfrontal bones.[20] Their tongues are not free, but held in place by a membrane that limits movement; as a result, crocodiles are unable to stick out their tongues.[21] Crocodiles have smooth skin on their bellies and sides, while their dorsal surfaces are armoured with large osteoderms. The armoured skin has scales and is thick and rugged, providing some protection. They are still able to absorb heat through this armour, as a network of small capillaries allows blood through the scales to absorb heat. The osteoderms are highly vascularised and aid in calcium balance, both to neutralize acids while the animal cannot breathe underwater[22] and to provide calcium for eggshell formation.[23] Crocodilian tegument have pores believed to be sensory in function, analogous to the lateral line in fishes. They are particularly seen on their upper and lower jaws. Another possibility is that they are secretory, as they produce an oily substance which appears to flush mud off.[20]

### Size[edit | edit source]

File:Large Crocodylus porosus.jpg

A saltwater crocodile in captivity

Size greatly varies among species, from the dwarf crocodile to the saltwater crocodile. Species of the dwarf crocodile Osteolaemus grow to an adult size of just 1.5 to 1.9 m (4.9 to 6.2 ft),[24] whereas the saltwater crocodile can grow to sizes over 6 m (20 ft) and weigh over 1,000 kg (2,200 lb).[25] Several other large species can reach over 5.2 m (17 ft) long and weigh over 900 kg (2,000 lb). Crocodilians show pronounced sexual dimorphism, with males growing much larger and more rapidly than females.[20] Despite their large adult sizes, crocodiles start their lives at around 20 cm (7.9 in) long. The largest species of crocodile is the saltwater crocodile, found in eastern India, northern Australia, throughout South-east Asia, and in the surrounding waters.

The brain volume of two adult crocodiles was 5.6 cm3 for a spectacled caiman and 8.5 cm3 for a larger Nile crocodile.[26]

The largest crocodile ever held in captivity is a saltwater–Siamese hybrid named Yai (Thai: ใหญ่, meaning big; born 10 June 1972) at the Samutprakarn Crocodile Farm and Zoo, Thailand. This animal measures 6 m (20 ft) in length and weighs 1,200 kg (2,600 lb).[27]

The longest crocodile captured alive was Lolong, a saltwater crocodile which was measured at 6.17 m (20.2 ft) and weighed at 1,075 kg (2,370 lb) by a National Geographic team in Agusan del Sur Province, Philippines.[28][29][30]

### Teeth[edit | edit source]

Crocodiles are polyphyodonts; they are able to replace each of their 80 teeth up to 50 times in their 35- to 75-year lifespan.[31][32] Next to each full-grown tooth, there is a small replacement tooth and an odontogenic stem cell in the dental lamina in standby that can be activated if required.[33]

## Biology and behaviour[edit | edit source]

Crocodilians are more closely related to birds and dinosaurs than to most animals classified as reptiles, the three families being included in the group Archosauria ('ruling reptiles'). Despite their prehistoric look, crocodiles are among the more biologically complex reptiles. Unlike other reptiles, a crocodile has a cerebral cortex and a four-chambered heart. Crocodilians also have the functional equivalent of a diaphragm by incorporating muscles used for aquatic locomotion into respiration.[34] Salt glands are present in the tongues of crocodiles and they have a pore opening on the surface of the tongue, a trait that separates them from alligators. Salt glands are dysfunctional in Alligatoridae.[20] Their function appears to be similar to that of salt glands in marine turtles. Crocodiles do not have sweat glands and release heat through their mouths. They often sleep with their mouths open and may pant like a dog.[35] Four species of freshwater crocodile climb trees to bask in areas lacking a shoreline.[36]

### Senses[edit | edit source]

File:A crocodiles eye (7825799462).jpg

Crocodile eye

Crocodiles have acute senses, an evolutionary advantage that makes them successful predators. The eyes, ears and nostrils are located on top of the head, allowing the crocodile to lie low in the water, almost totally submerged and hidden from prey.

#### Vision[edit | edit source]

Crocodiles have very good night vision, and are mostly nocturnal hunters. They use the disadvantage of most prey animals' poor nocturnal vision to their advantage. The light receptors in crocodilians' eyes include cones and numerous rods, so it is assumed all crocodilians can see colours.[37] Crocodiles have vertical-slit shaped pupils, similar to those of domestic cats. One explanation for the evolution of slit pupils is that they exclude light more effectively than a circular pupil, helping to protect the eyes during daylight.[38] On the rear wall of the eye is a tapetum lucidum, which reflects incoming light back onto the retina, thus utilizing the small amount of light available at night to best advantage. In addition to the protection of the upper and lower eyelids, crocodiles have a nictitating membrane (sometimes called a "third eye-lid") that can be drawn over the eye from the inner corner while the lids are open. The eyeball surface is thus protected under the water while a certain degree of vision is still possible.[39]

#### Olfaction[edit | edit source]

Crocodilian sense of smell is also very well developed, aiding them to detect prey or animal carcasses that are either on land or in water, from far away. It is possible that crocodiles use olfaction in the egg prior to hatching.[39]

Chemoreception in crocodiles is especially interesting because they hunt in both terrestrial and aquatic surroundings. Crocodiles have only one olfactory chamber and the vomeronasal organ is absent in the adults[40] indicating all olfactory perception is limited to the olfactory system. Behavioural and olfactometer experiments indicate that crocodiles detect both air-borne and water-soluble chemicals and use their olfactory system for hunting. When above water, crocodiles enhance their ability to detect volatile odorants by gular pumping, a rhythmic movement of the floor of the pharynx.[41][42] Crocodiles close their nostrils when submerged, so olfaction underwater is unlikely. Underwater food detection is presumably gustatory and tactile.[43]

#### Hearing[edit | edit source]

Crocodiles can hear well; their tympanic membranes are concealed by flat flaps that may be raised or lowered by muscles.[20]

#### Touch[edit | edit source]

The touch sensors, concentrated in crocodile skin, can be thicker than those in human fingerprints.[44] Crocodiles can feel the touch on their skin.[45]

Cranial: The upper and lower jaws are covered with sensory pits, visible as small, black speckles on the skin, the crocodilian version of the lateral line organs seen in fish and many amphibians, though arising from a completely different origin. These pigmented nodules encase bundles of nerve fibers innervated beneath by branches of the trigeminal nerve. They respond to the slightest disturbance in surface water, detecting vibrations and small pressure changes as small as a single drop.[46] This makes it possible for crocodiles to detect prey, danger and intruders, even in total darkness. These sense organs are known as domed pressure receptors (DPRs).[47]

Post-Cranial: While alligators and caimans have DPRs only on their jaws, crocodiles have similar organs on almost every scale on their bodies. The function of the DPRs on the jaws is clear; to catch prey, but it is still not clear what the function is of the organs on the rest of the body. The receptors flatten when exposed to increased osmotic pressure, such as that experienced when swimming in sea water hyperosmotic to the body fluids. When contact between the integument and the surrounding sea water solution is blocked, crocodiles are found to lose their ability to discriminate salinities. It has been proposed that the flattening of the sensory organ in hyperosmotic sea water is sensed by the animal as "touch", but interpreted as chemical information about its surroundings.[47] This might be why in alligators they are absent on the rest of the body.[48]

### Hunting and diet[edit | edit source]

File:Crocodile attack during Mara River crossing - frame 1 - Flickr - Lip Kee.jpg

Nile crocodile attacking wildebeest

File:Human Crocodile Conflict.jpg

Human Crocodile Conflict

File:Crocodile at Ranganathittu, Mysore, Karnataka.JPG

Even a cruising crocodile is difficult to locate

Crocodiles are ambush predators, waiting for fish or land animals to come close, then rushing out to attack. Crocodiles mostly eat fish, amphibians, crustaceans, molluscs, birds, reptiles, and mammals, and they occasionally cannibalize smaller crocodiles. What a crocodile eats varies greatly with species, size and age. From the mostly fish-eating species, like the slender-snouted and freshwater crocodiles, to the larger species like the Nile crocodile and the saltwater crocodile that prey on large mammals, such as buffalo, deer and wild boar, diet shows great diversity. Diet is also greatly affected by the size and age of the individual within the same species. All young crocodiles hunt mostly invertebrates and small fish, gradually moving on to larger prey. Being ectothermic (cold-blooded) predators, they have a very slow metabolism, so they can survive long periods without food. Despite their appearance of being slow, crocodiles have a very fast strike and are top predators in their environment, and various species have been observed attacking and killing other predators such as sharks and big cats.[49][50] Crocodiles are also known to be aggressive scavengers who feed upon carrion and steal from other predators.[51] Evidence suggests that crocodiles also feed upon fruits, based on the discovery of seeds in stools and stomachs from many subjects as well as accounts of them feeding.[52][53]

Crocodiles have the most acidic stomach of any vertebrate. They can easily digest bones, hooves and horns. The BBC TV[54] reported that a Nile crocodile that has lurked a long time underwater to catch prey builds up a large oxygen debt. When it has caught and eaten that prey, it closes its right aortic arch and uses its left aortic arch to flush blood loaded with carbon dioxide from its muscles directly to its stomach; the resulting excess acidity in its blood supply makes it much easier for the stomach lining to secrete more stomach acid to quickly dissolve bulks of swallowed prey flesh and bone. Many large crocodilians swallow stones (called gastroliths or stomach stones), which may act as ballast to balance their bodies or assist in crushing food,[20] similar to grit ingested by birds. Herodotus claimed that Nile crocodiles had a symbiotic relationship with certain birds, such as the Egyptian plover, which enter the crocodile's mouth and pick leeches feeding on the crocodile's blood; with no evidence of this interaction actually occurring in any crocodile species, it is most likely mythical or allegorical fiction.[55]

#### Bite[edit | edit source]

File:Nile Crocodile (Crocodylus niloticus) trying to swallow a big Tilapia (Oreochromis sp.)... (16818888756).jpg

Nile crocodile trying to swallow a big Tilapia in Kruger National Park, South Africa

Since they feed by grabbing and holding onto their prey, they have evolved sharp teeth for piercing and holding onto flesh, and powerful muscles to close the jaws and hold them shut. The teeth are not well-suited to tearing flesh off of large prey items as are the dentition and claws of many mammalian carnivores, the hooked bills and talons of raptorial birds, or the serrated teeth of sharks. However, this is an advantage rather than a disadvantage to the crocodile since the properties of the teeth allow it to hold onto prey with the least possibility of the prey animal escaping. Cutting teeth, combined with the exceptionally high bite force, would pass through flesh easily enough to leave an escape opportunity for prey. The jaws can bite down with immense force, by far the strongest bite of any animal. The force of a large crocodile's bite is more than 5,000 lbf (22,000 N), which was measured in a 5.5 m (18 ft) Nile crocodile, in the field;[56] comparing to 335 lbf (1,490 N) for a Rottweiler, 800 lbf (3,600 N) for a hyena, 2,200 lbf (9,800 N) for an American alligator,[57][failed verification] and 4,095 lbf (18,220 N) for the largest confirmed great white shark.[58]

A 5.2 m (17 ft) long saltwater crocodile has been confirmed as having the strongest bite force ever recorded for an animal in a laboratory setting. It was able to apply a bite force value of 3,700 lbf (16,000 N), and thus surpassed the previous record of 2,125 lbf (9,450 N) made by a 3.9 m (13 ft) long American alligator.[59][60] Taking the measurements of several 5.2 m (17 ft) crocodiles as reference, the bite forces of 6-m individuals were estimated at 7,700 lbf (34,000 N).[61] The study, led by Dr. Gregory M. Erickson, also shed light on the larger, extinct species of crocodilians. Since crocodile anatomy has changed only slightly over the last 80 million years, current data on modern crocodilians can be used to estimate the bite force of extinct species. An 11-to-12-metre (36–39 ft) Deinosuchus would apply a force of 23,100 lbf (103,000 N), nearly twice that of the latest, higher bite force estimations of Tyrannosaurus (12,814 lbf (57,000 N)).[7][62][63][64] The extraordinary bite of crocodilians is a result of their anatomy. The space for the jaw muscle in the skull is very large, which is easily visible from the outside as a bulge at each side. The muscle is so stiff, it is almost as hard as bone to touch, as if it were the continuum of the skull. Another trait is that most of the muscle in a crocodile's jaw is arranged for clamping down. Despite the strong muscles to close the jaw, crocodiles have extremely small and weak muscles to open the jaw. Crocodiles can thus be subdued for study or transport by taping their jaws or holding their jaws shut with large rubber bands cut from automobile inner tubes.

### Locomotion[edit | edit source]

File:Crocodile farm in Mexico.JPG

A crocodile, in a farm, gaping to thermoregulate

Crocodiles can move quickly over short distances, even out of water. The land speed record for a crocodile is 17 km/h (11 mph) measured in a galloping Australian freshwater crocodile.[65] Maximum speed varies between species. Some species can gallop, including Cuban crocodiles, Johnston's crocodiles, New Guinea crocodiles, African dwarf crocodiles, and even small Nile crocodiles. The fastest means by which most species can move is a "belly run", in which the body moves in a snake-like (sinusoidal) fashion, limbs splayed out to either side paddling away frantically while the tail whips to and fro. Crocodiles can reach speeds of 10–11 km/h (6–7 mph) when they "belly run", and often faster if slipping down muddy riverbanks. When a crocodile walks quickly, it holds its legs in a straighter and more upright position under its body, which is called the "high walk". This walk allows a speed of up to 5 km/h.[66]

Crocodiles may possess a homing instinct. In northern Australia, three rogue saltwater crocodiles were relocated 400 km (249 mi) by helicopter, but returned to their original locations within three weeks, based on data obtained from tracking devices attached to them.[67]

### Longevity[edit | edit source]

Measuring crocodile age is unreliable, although several techniques are used to derive a reasonable guess. The most common method is to measure lamellar growth rings in bones and teeth—each ring corresponds to a change in growth rate which typically occurs once a year between dry and wet seasons.[68] Bearing these inaccuracies in mind, it can be safely said that all crocodile species have an average lifespan of at least 30–40 years, and in the case of larger species an average of 60–70 years. The oldest crocodiles appear to be the largest species. C. porosus is estimated to live around 70 years on average, with limited evidence of some individuals exceeding 100 years.[69]

In captivity, some individuals are claimed to have lived for over a century. A male crocodile lived to an estimated age of 110–115 years in a Russian zoo in Yekaterinburg.[70] Named Kolya, he joined the zoo around 1913 to 1915, fully grown, after touring in an animal show, and lived until 1995.[70] A male freshwater crocodile lived to an estimated age of 120–140 years at the Australia Zoo.[71] Known affectionately as "Mr. Freshie", he was rescued around 1970 by Bob Irwin and Steve Irwin, after being shot twice by hunters and losing an eye as a result, and lived until 2010.[71] Crocworld Conservation Centre, in Scottburgh, South Africa, claims to have a male Nile crocodile that was born in 1900. Named Henry, the crocodile is said to have lived in Botswana along the Okavango River, according to centre director Martin Rodrigues.[72][73]

### Social behaviour and vocalization[edit | edit source]

File:Crocodiles resting together.jpeg

Captive crocodiles resting together with open jaws.

Crocodiles are the most social of reptiles. Even though they do not form social groups, many species congregate in certain sections of rivers, tolerating each other at times of feeding and basking. Most species are not highly territorial, with the exception of the saltwater crocodile, which is a highly territorial and aggressive species: a mature, male saltwater crocodile will not tolerate any other males at any time of the year, but most other species are more flexible. There is a certain form of hierarchy in crocodiles: the largest and heaviest males are at the top, having access to the best basking site, while females are priority during a group feeding of a big kill or carcass. A good example of the hierarchy in crocodiles would be the case of the Nile crocodile. This species clearly displays all of these behaviours. Studies in this area are not thorough, however, and many species are yet to be studied in greater detail.[74] Mugger crocodiles are also known to show toleration in group feedings and tend to congregate in certain areas. However, males of all species are aggressive towards each other during mating season, to gain access to females.

Crocodiles are also the most vocal of all reptiles, producing a wide variety of sounds during various situations and conditions, depending on species, age, size and sex. Depending on the context, some species can communicate over 20 different messages through vocalizations alone.[75] Some of these vocalizations are made during social communication, especially during territorial displays towards the same sex and courtship with the opposite sex; the common concern being reproduction. Therefore most conspecific vocalization is made during the breeding season, with the exception being year-round territorial behaviour in some species and quarrels during feeding. Crocodiles also produce different distress calls and in aggressive displays to their own kind and other animals; notably other predators during interspecific predatory confrontations over carcasses and terrestrial kills.

Specific vocalisations include —

* Chirp: When about to hatch, the young make a "peeping" noise, which encourages the female to excavate the nest. The female then gathers the hatchlings in her mouth and transports them to the water, where they remain in a group for several months, protected by the female[76]
* Distress call: A high-pitched call used mostly by younger animals to alert other crocodiles to imminent danger or an animal being attacked.
* Threat call: A hissing sound that has also been described as a coughing noise.
* Hatching call: Emitted by a female when breeding to alert other crocodiles that she has laid eggs in her nest.
* Bellowing: Male crocodiles are especially vociferous. Bellowing choruses occur most often in the spring when breeding groups congregate, but can occur at any time of year. To bellow, males noticeably inflate as they raise the tail and head out of water, slowly waving the tail back and forth. They then puff out the throat and with a closed mouth, begin to vibrate air. Just before bellowing, males project an infrasonic signal at about 10 Hz through the water, which vibrates the ground and nearby objects. These low-frequency vibrations travel great distances through both air and water to advertise the male's presence and are so powerful they result in the water's appearing to "dance".[77]

### Reproduction[edit | edit source]

File:Nile crocodile eggs.jpg

Crocodile eggs

Crocodiles lay eggs, which are laid in either holes or mound nests, depending on species. A hole nest is usually excavated in sand and a mound nest is usually constructed out of vegetation. Nesting periods range from a few weeks up to six months. Courtship takes place in a series of behavioural interactions that include a variety of snout rubbing and submissive display that can take a long time. Mating always takes place in water, where the pair can be observed mating several times. Females can build or dig several trial nests which appear incomplete and abandoned later. Egg-laying usually takes place at night and about 30–40 minutes.[78] Females are highly protective of their nests and young. The eggs are hard shelled, but translucent at the time of egg-laying. Depending on the species of crocodile, 7 to 95 eggs are laid. Crocodile embryos do not have sex chromosomes, and unlike humans, sex is not determined genetically. Sex is determined by temperature, where at 30 °C (86 °F) or less most hatchlings are females and at 31 °C (88 °F), offspring are of both sexes. A temperature of 32 to 33 °C (90 to 91 °F) gives mostly males whereas above 33 °C (91 °F) in some species continues to give males, but in other species resulting in females, which are sometimes called high-temperature females.[79] Temperature also affects growth and survival rate of the young, which may explain the sexual dimorphism in crocodiles. The average incubation period is around 80 days, and also is dependent on temperature and species that usually ranges from 65 to 95 days. The eggshell structure is very conservative through evolution but there are enough changes to tell different species apart by their eggshell microstructure.[80] Scutes may play a role in calcium storage for eggshell formation.[23]

At the time of hatching, the young start calling within the eggs. They have an egg-tooth at the tip of their snouts, which is developed from the skin, and that helps them pierce out of the shell. Hearing the calls, the female usually excavates the nest and sometimes takes the unhatched eggs in her mouth, slowly rolling the eggs to help the process. The young is usually carried to the water in the mouth. She would then introduce her hatchlings to the water and even feed them.[81] The mother would then take care of her young for over a year before the next mating season. In the absence of the mother crocodile, the father would act in her place to take care of the young.[82] However, even with a sophisticated parental nurturing, young crocodiles have a very high mortality rate due to their vulnerability to predation.[83] A group of hatchlings is called a pod or crèche and may be protected for months.[78]

### Cognition[edit | edit source]

Crocodiles possess some advanced cognitive abilities.[84][85][86] They can observe and use patterns of prey behaviour, such as when prey come to the river to drink at the same time each day. Vladimir Dinets of the University of Tennessee, observed that crocodiles use twigs as bait for birds looking for nesting material.[87] They place sticks on their snouts and partly submerge themselves. When the birds swooped in to get the sticks, the crocodiles then catch the birds. Crocodiles only do this in spring nesting seasons of the birds, when there is high demand for sticks to be used for building nests. Vladimir also discovered other similar observations from various scientists, some dating back to the 19th century.[84][86] Aside from using sticks, crocodiles are also capable of cooperative hunting.[86][88] Large numbers of crocodiles swim in circles to trap fish and take turns snatching them. In hunting larger prey, crocodiles swarm in, with one holding the prey down as the others rip it apart.

According to a 2015 study, crocodiles engage in all three main types of play behaviour recorded in animals: locomotor play, play with objects and social play. Play with objects is reported most often, but locomotor play such as repeatedly sliding down slopes, and social play such as riding on the backs of other crocodiles is also reported. This behaviour was exhibited with conspecifics and mammals and is apparently not uncommon, though has been difficult to observe and interpret in the past due to obvious dangers of interacting with large carnivores.[89]

## Taxonomy and phylogeny[edit | edit source]

See also: List of crocodilians

Crocodylidae is cladistically defined as a crown group composed of the last common ancestor of the Nile crocodile (Crocodylus niloticus), the Dwarf crocodile (Osteolaemus tetraspis), and all of its descendants.[90] It contains two subfamilies: Crocodylinae and Osteolaeminae.[91] Crocodylinae contains 13-14 living species, as well as 6 extinct species. Osteolaeminae was named by Christopher Brochu in 2003 as a subfamily of Crocodylidae separate from Crocodylinae,[92] and contains the two extant genera Osteolaemus and Mecistops, along with several extinct genera. The number of extant species within Osteolaeminae is currently in question.[19]

File:Crocfarm.jpg

Crocodile farming in Australia

File:Crocadiles.jpg

Crocodiles in Costa Rica

File:Crocodylus acutus mexico 01.jpg

American crocodile at La Manzanilla, Jalisco, Mexico

File:Voay robustus.JPG

A skull of the extinct Voay robustus

* Subfamily Crocodylinae
* Genus Crocodylus
* Crocodylus acutus, American crocodile
* Crocodylus halli, Hall's New Guinea crocodile found South of the New Guinea Highlands[93]
* Crocodylus intermedius, Orinoco crocodile
* Crocodylus johnsoni, freshwater crocodile, or Johnstone's crocodile
* Crocodylus mindorensis, Philippine crocodile
* Crocodylus moreletii, Morelet's crocodile or Mexican crocodile
* Crocodylus niloticus, Nile crocodile or African crocodile (the subspecies found in Madagascar is sometimes called the black crocodile)
* Crocodylus novaeguineae, New Guinea crocodile found North of the New Guinea Highlands
* Crocodylus palustris, mugger, marsh or Indian crocodile
* Crocodylus porosus, saltwater crocodile or estuarine crocodile
* Crocodylus raninus, the Borneo crocodile, is currently considered to be a synonym of Crocodylus porosus; whether or not it is a distinct species remains unclear.[94]
* Crocodylus rhombifer, Cuban crocodile
* Crocodylus siamensis, Siamese crocodile (may be extinct in the wild)
* Crocodylus suchus, West African crocodile, desert or sacred crocodile
* Crocodylus anthropophagus†
* Crocodylus checchiai†
* Crocodylus falconensis†
* Crocodylus palaeindicus†
* Crocodylus thorbjarnarsoni†
* Genus Voay†
* Voay robustus† (formerly Crocodylus robustus)
* Subfamily Osteolaeminae
* Genus Osteolaemus
* Osteolaemus tetraspis, dwarf crocodile (There has been controversy as to whether or not this is actually two species; recent (2010) DNA analysis indicate three distinct species: O. tetraspis, O. osborni and a third, currently unnamed.)
* Genus Mecistops
* Mecistops cataphractus West African slender-snouted crocodile
* Mecistops leptorhynchus Central African slender-snouted crocodile
* Genus Brochuchus†
* Brochuchus pigotti† (formerly Crocodylus pigotti)
* Brochuchus parvidens†
* Genus Euthecodon†
* Euthecodon nitriae†
* Euthecodon brumpti†
* Euthecodon arambourgi†
* Genus Rimasuchus†
* Rimasuchus lloydi† (formerly Crocodylus lloydi)

### Phylogeny[edit | edit source]

Recent molecular studies using DNA sequencing have shown crocodiles to be more closely related to the gavialids rather than to alligators, contrary to prior theories based on morphological studies alone.[95][96][97][98][91]

Below is a cladogram showing the relationships of the major extant crocodile groups based on molecular studies, excluding separate extinct taxa:

Crocodilia |  | Alligatoridae |  | Caimaninae |  |  |  |  |

Caiman File:Caiman crocodilus llanos white background.JPG

|

Melanosuchus File:Melanosuchus niger white background.jpg

Paleosuchus File:Dwarf Caiman white background.jpg

Alligatorinae |

Alligator File:Alligator white background.jpg

Longirostres |  | Crocodylidae |  |  |

Crocodylus File:Siamese Crocodile white background.jpg

|

|  |  |

Mecistops File:Crocodylus cataphractus faux-gavial d'Afrique2 white background.JPG

|

Osteolaemus File:Bristol.zoo.westafrican.dwarf.croc.arp. white background.jpg

Gavialidae |  |  |

Gavialis File:Gavialis gangeticus (Gharial, Gavial) white background.jpg

|

Tomistoma File:Tomistoma schlegelii. white background.JPG

Below is a more detailed cladogram of Crocodylidae, based on a 2021 study using paleogenomics that extracted DNA from the extinct Voay.[91]

Crocodylidae |  | Osteolaeminae |  |  |  |  |

Mecistops cataphractus West African slender-snouted crocodile

|

Euthecodon†

|  |  |

Brochuchus†

|

|  |  |

Rimasuchus†

|

|  |  |

Osteolaemus osborni Osborn’s dwarf crocodile

|

Osteolaemus tetraspis Dwarf crocodile

Crocodylinae |  |  |

Voay†

|

Crocodylus |  |  |  |  |  |  |

Crocodylus anthropophagus†

|

Crocodylus thorbjarnarsoni†

|  |  |

Crocodylus palaeindicus†

|

Crocodylus Tirari Desert†

|  |  |  |  |  |  |

Crocodylus johnstoni Freshwater crocodile

|

|  |  |

Crocodylus novaeguineae New Guinea crocodile

|

Crocodylus mindorensis Philippine crocodile

|  |  |

Crocodylus porosus Saltwater crocodile

|

|  |  |

Crocodylus siamensis Siamese crocodile

|

Crocodylus palustris Mugger crocodile

|  |  |  |  |

Crocodylus checchiai†

|

Crocodylus falconensis†

|  |  |

Crocodylus suchus West African crocodile

|

|  |  |

Crocodylus niloticus Nile crocodile

|

|  |  |  |  |

Crocodylus moreletii Morelet's crocodile

|

Crocodylus rhombifer Cuban crocodile

|  |  |

Crocodylus intermedius Orinoco crocodile

|

Crocodylus acutus American crocodile

(crown group)

Alternatively, some morphological studies have recovered Mecistops as a basal member of Crocodylinae, more closely related to Crocodylus than to Osteolaemus and the other members of Osteolaeminae,[90][99] as shown in the cladogram below.[99]

Crocodylidae |  | Osteolaeminae |  |  |

Rimasuchus lloydi†

|

|  |  |

Voay robustus†

|

|  |  |

Osteolaemus osborni Osborn’s dwarf crocodile

|

Osteolaemus tetraspis Dwarf crocodile

|  |  |

"Crocodylus" gariepensis†

|

|  |  |  |  |

Brochuchus parvidens†

|

Brochuchus pigotti†

|  |  |

Euthecodon arambourgii†

|

Euthecodon brumpti†

Crocodylinae |  |  |

Mecistops cataphractus West African slender-snouted crocodile

|

|  |  |  |  |

Crocodylus thorbjarnarsoni†

|

Crocodylus anthropophagus†

|  |  |

Crocodylus niloticus Nile crocodile

|

|  |  |

Crocodylus checchiai†

|

Crocodylus moreletii Morelet's crocodile

Crocodylus intermedius Orinoco crocodile

Crocodylus acutus American crocodile

Crocodylus rhombifer Cuban crocodile

Crocodylus palaeindicus†

|  |  |

Crocodylus palustris Mugger crocodile

|

|  |  |  |  |

Crocodylus ossifragus†

|

Crocodylus siamensis Siamese crocodile

|  |  |

Crocodylus mindorensis Philippine crocodile

|

Crocodylus johnstoni Freshwater crocodile

Crocodylus porosus Saltwater crocodile

|  |  |

Crocodylus raninus Borneo crocodile

|

Crocodylus novaeguineae New Guinea crocodile

Paleoafrican Crocodylus

Neotropical Crocodylus

Indo-Pacific Crocodylus

## Relationship with humans[edit | edit source]

### Danger to humans[edit | edit source]

Main article: Crocodile attacks

File:Marine Stingers Sign Cairns.JPG

Crocodile warning sign, Trinity Beach, Queensland, Australia

File:The American River Ganges (Thomas Nast cartoon).jpg

Famous 1876 editorial cartoon by Thomas Nast depicting Roman Catholic bishops in the US as crocodiles attacking public schools, with the connivance of Irish Catholic politicians

The larger species of crocodiles are very dangerous to humans, mainly because of their ability to strike before the person can react.[100] The saltwater crocodile and Nile crocodile are the most dangerous, killing hundreds of people each year in parts of Southeast Asia and Africa. The mugger crocodile and American crocodile are also dangerous to humans.

### Crocodile products[edit | edit source]

Further information: Crocodile farm and Crocodile skin

File:Crocodile wallets.jpg

Crocodile leather wallets from a Bangkok crocodile farm

Crocodiles are protected in many parts of the world, but are also farmed commercially. Their hides are tanned and used to make leather goods such as shoes and handbags; crocodile meat is also considered a delicacy.[101] The most commonly farmed species are the saltwater and Nile crocodiles, while a hybrid of the saltwater and the rare Siamese crocodile is also bred in Asian farms. Farming has resulted in an increase in the saltwater crocodile population in Australia, as eggs are usually harvested from the wild, so landowners have an incentive to conserve their habitat. Crocodile leather can be made into goods such as wallets, briefcases, purses, handbags, belts, hats, and shoes. Crocodile oil has been used for various purposes.[102] Crocodiles were eaten by Vietnamese while they were taboo and off limits for Chinese. Vietnamese women who married Chinese men adopted the Chinese taboo.[103]

File:Teriyaki CrocTail.jpg

A plate of crocodile meat in teriyaki sauce in Helsinki, Finland.

Crocodile meat is consumed in some countries, such as Australia, Ethiopia, Thailand, South Africa, China and also Cuba (in pickled form). It is also occasionally eaten as an "exotic" delicacy in the western world.[104] Cuts of meat include backstrap and tail fillet.

Due to high demand for crocodile products, TRAFFIC states that 1,418,487 Nile Crocodile skins were exported from Africa between 2006 and 2015.[105]

### In religion[edit | edit source]

File:Sobek Oxford.jpg

Statue of Sobek from the mortuary temple of Amenemhat III c. 1810 BC. Ashmolean Museum, Oxford.

File:Plaque with Crocodile Deity, ca. 700-900.,33.448.12.jpg

Brooklyn Museum – Plaque from Cocle, Panama, with Crocodile Deity, ca. 700–900.,33.448.12

Crocodiles have appeared in various forms in religions across the world. Ancient Egypt had Sobek, the crocodile-headed god, with his cult-city Crocodilopolis, as well as Taweret, the goddess of childbirth and fertility, with the back and tail of a crocodile.[106] The Jukun shrine in the Wukari Federation, Nigeria is dedicated to crocodiles in thanks for their aid during migration.[107] In Madagascar various peoples such as the Sakalava and Antandroy see crocodiles as ancestor spirits and under local fady often offer them food;[108][109] in the case of the latter at least a crocodile features prominently as an ancestor deity.[108][110]

Crocodiles appear in different forms in Hinduism. Varuna, a Vedic and Hindu god, rides a part-crocodile makara; his consort Varuni rides a crocodile.[88] Similarly the goddess personifications of the Ganga and Yamuna rivers are often depicted as riding crocodiles.[111][112][113] Also in India, in Goa, crocodile worship is practised, including the annual Mannge Thapnee ceremony.[114]

Akali Nihang Sikh warriors also have connections with crocodiles. Nihang may come from the Persian word for a mythical sea creature (Persian: نهنگ).[115] The term owes its origin to Mughal historians, who compared the ferocity of the Akali with that of crocodiles.[116][117] The meaning of Akali in Sikhism however, is the immortal army of Akal (god).[118]

In Latin America, Cipactli was the giant earth crocodile of the Aztec and other Nahua peoples.[citation needed]

### Crocodile tears[edit | edit source]

Main article: Crocodile tears

The term "crocodile tears" (and equivalents in other languages) refers to a false, insincere display of emotion, such as a hypocrite crying fake tears of grief. It is derived from an ancient anecdote that crocodiles weep in order to lure their prey, or that they cry for the victims they are eating, first told in the Bibliotheca by Photios I of Constantinople.[119] The story is repeated in bestiaries such as De bestiis et aliis rebus. This tale was first spread widely in English in the stories of the Travels of Sir John Mandeville in the 14th century, and appears in several of Shakespeare's plays.[120] In fact, crocodiles can and do generate tears, but they do not actually cry.[121]

### The Surabaya Shark and Crocodile[edit | edit source]

File:City of Surabaya Logo.svg

Fighting shark and crocodile, the emblem of Surabaya city applied since colonial times, derived from local folk etymology

The name of Surabaya, Indonesia, is locally believed to be derived from the words "suro" (shark) and "boyo" (crocodile), two creatures which, in a local myth, fought each other in order to gain the title of "the strongest and most powerful animal" in the area. It was said that the two powerful animals agreed for a truce and set boundaries; that the shark's domain would be in the sea while the crocodile's domain would be on the land. However one day the shark swam into the river estuary to hunt, this angered the crocodile, who declared it his territory. The Shark argued that the river was a water-realm which meant that it was shark territory, while the crocodile argued that the river flowed deep inland, so it was therefore crocodile territory. A ferocious fight resumed as the two animals bit each other. Finally the shark was badly bitten and fled to the open sea, and the crocodile finally ruled the estuarine area that today is the city.[122]

Another source alludes to a Jayabaya prophecy—a 12th-century psychic king of Kediri Kingdom—as he foresaw a fight between a giant white shark and a giant white crocodile taking place in the area, which is sometimes interpreted as a foretelling of the Mongol invasion of Java, a major conflict between the forces of the Kublai Khan, Mongol ruler of China, and those of Raden Wijaya's Majapahit in 1293.[123] The two animals are now used as the city's symbol, with the two facing and circling each other, as depicted in a statue appropriately located near the entrance to the city zoo (see photo on the Surabaya page).

### Crocodile (walking)[edit | edit source]

In the UK, a row of schoolchildren walking in pairs, or two by two is known as 'crocodile'.[124][125]

### Fashion[edit | edit source]

The French clothing company Lacoste features its iconic crocodile in its logo. The American shoe company Crocs also uses this imagery in its logo.

## See also[edit | edit source]

* Alligator meat
* The Crocodile Hunter
* Crocodilian armor
* Game (hunting)
* Sewer alligator
* Sobek – an ancient Egyptian deity associated with the Nile crocodile

## References[edit | edit source]

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114. ^ "The Crocodile is God in Goa" (PDF). Crocodile Specialist Group Newsletter. 14 (1): 8. January–March 1995. Archived (PDF) from the original on 2022-10-09.
115. ^ Taba, David (2011). Iranian Character of The Armenian Language. p. 9.
116. ^ ਨਿਹੰਗ - nihanga - निहंग ਫ਼ਾ. [نِہنگ] ਸੰਗ੍ਯਾ- ਖੜਗ. ਤਲਵਾਰ. "ਬਾਹਤ ਨਿਹੰਗ। ਉੱਠਤ ਫੁਲਿੰਗ." (ਸਲੋਹ) ਤਲਵਾਰ ਦੇ ਪ੍ਰਹਾਰ ਤੋਂ ਵਿਸ੍‍ਫੁਲਿੰਗ (ਚਿੰਗਾੜੇ) ਨਿਕਲਦੇ ਹਨ। ੨. ਕਲਮ. ਲੇਖਨੀ। ੩. ਘੜਿਆਲ. ਮਗਰਮੱਛ. (मकर मत्स्य) ਨਾਕੂ. Alligator. "ਜਨੁਕ ਲਹਿਰ ਦਰਯਾਵ ਤੇ ਨਿਕਸ੍ਯੋ ਬਡੋ ਨਿਹੰਗ." (ਚਰਿਤ੍ਰ ੨੧੭) ੪. ਡਿੰਗ- ਘੋੜਾ. ਅਸ਼੍ਵ. ਤੁਰੰਗ. "ਬਿਚਰੇ ਨਿਹੰਗ। ਜੈਸੇ ਪਿਲੰਗ." (ਵਿਚਿਤ੍ਰ) ਚਿਤ੍ਰੇ ਵਾਂਙ ਛਾਲਾਂ ਮਾਰਦੇ ਘੋੜੇ ਵਿਚਰੇ। ੫. ਸੰ. निः शङ्क ਨਿਹਸ਼ੰਕ. ਵਿ- ਜਿਸ ਨੂੰ ਮੋਤ ਦੀ ਚਿੰਤਾ ਨਹੀਂ. ਬਹਾਦੁਰ. ਦਿਲੇਰ. "ਨਿਰਭਉ ਹੋਇਓ ਭਇਆ ਨਿਹੰਗਾ." (ਆਸਾ ਮਃ ੫) "ਪਹਿਲਾ ਦਲਾਂ ਮਿਲੰਦਿਆਂ ਭੇੜ ਪਿਆ ਨਿਹੰਗਾ." (ਚੰਡੀ ੩) ੬. ਸੰ. निः सङ्ग- ਨਿਹਸੰਗ. ਨਿਰਲੇਪ. ਆਤਮਗ੍ਯਾਨੀ. ਦੁੰਦ (ਦ੍ਵੰਦ੍ਵ) ਦਾ ਤਿਆਗੀ. "ਨਿਹੰਗ ਕਹਾਵੈ ਸੋ ਪੁਰਖ ਦੁਖ ਸੁਖ ਮੰਨੇ ਨ ਅੰਗ." (ਪ੍ਰਾਪੰਪ੍ਰ) "ਮੁੱਲਾ ਬ੍ਰਾਹਮਣ ਨਾ ਬੁਝੈ ਬੁਝੈ ਫਕਰ ਨਿਹੰਗ." (ਮਗੋ) ੭. ਸਿੰਘਾਂ ਦਾ ਇੱਕ ਫਿਰਕਾ, ਜੋ ਸੀਸ ਪੁਰ ਫਰਹਰੇ ਵਾਲਾ ਉੱਚਾ ਦਮਾਲਾ, ਚਕ੍ਰ, ਤੋੜਾ, ਖੰਡਾ, ਕ੍ਰਿਪਾਨ, ਗਜਗਾਹ ਆਦਿਕ ਸ਼ਸਤ੍ਰ ਅਰ ਨੀਲਾ ਬਾਣਾ ਪਹਿਨਦਾ ਹੈ, ਨਿਹੰਗ ਸਿੰਘ ਮਰਣ ਦੀ ਸ਼ੰਕਾ ਤਿਆਗਕੇ ਹਰਵੇਲੇ ਸ਼ਹੀਦੀ ਪਾਉਣ ਨੂੰ ਤਿਆਰ ਤੇ ਮਾਇਆ ਤੋਂ ਨਿਰਲੇਪ ਰਹਿਂਦਾ ਹੈ, ਜਿਸ ਲਈ ਇਹ ਨਾਮ ਹੈ.#ਬਹੁਤ ਸਿੰਘਾਂ ਤੋਂ ਸੁਣੀਦਾ ਹੈ ਕਿ ਇੱਕ ਵਾਰ ਸਾਹਿਬਜ਼ਾਦਾ ਫਤੇ ਸਿੰਘ ਜੀ ਵਿਲਾਸ ਕਰਦੇਹੋਏ ਸੀਸ ਤੇ ਦਮਾਲਾ ਸਜਾਕੇ ਦਸ਼ਮੇਸ਼ ਦੇ ਹਜੂਰ ਆਏ, ਜਿਸ ਪੁਰ ਪਿਤਾ ਜੀ ਨੇ ਫਰਮਾਇਆ ਕਿ ਇਸ ਬਾਣੇ ਦਾ ਇੱਕ ਨਿਹੰਗਪੰਥ ਹੋਵੇਗਾ.#ਕਈ ਆਖਦੇ ਹਨ ਕਿ ਜਦ ਕਲਗੀਧਰ ਨੇ ਉੱਚ- ਪੀਰ ਵਾਲਾ ਨੀਲਾ ਬਾਣਾ ਅਗਨੀ ਵਿੱਚ ਸਾੜਿਆ, ਉਸ ਸਮੇਂ ਇੱਕ ਲੀਰ ਕਟਾਰ ਨਾਲ ਬੰਨ੍ਹੀ, ਜਿਸ ਤੋਂ ਨੀਲਾਂਬਰੀ ਸੰਪ੍ਰਦਾਯ ਚੱਲੀ, ਜੇਹਾ ਕਿ ਭਾਈ ਸੰਤੋਖ ਸਿੰਘ ਜੀ ਲਿਖਦੇ ਹਨ- (ਗੁਪ੍ਰਸੂ)#ਭਾਈ ਸੰਤੋਖ ਸਿੰਘ ਜੀ ਇਹ ਭੀ ਲਿਖਦੇ ਹਨ ਕਿ ਸ਼੍ਰੀ ਗੁਰੂ ਗੋਬਿੰਦ ਸਿੰਘ ਜੀ ਨੇ ਭਾਈ ਮਾਨ ਸਿੰਘ ਨੂੰ ਵਰ ਦਿੱਤਾ ਕਿ ਤੇਰਾ ਨਿਹੰਗ ਪੰਥ ਚੱਲੇਗਾ, ਯਥਾ-#"ਹੈ ਪ੍ਰਸੰਨ ਬਰ ਦੇਵਤ ਜੋਵੈ।#ਪੰਥ ਖਾਲਸੇ ਮੇ ਤਵ ਹੋਵੈ।#ਤੁਝ ਸਮ ਬੇਖ¹ ਸੁਭਾਉ ਬਿਸਾਲੀ।#ਨਾਮ ਨਿਹੰਗ ਅਨੇਕ ਅਕਾਲੀ." (ਗੁਪ੍ਰਸੂ)#ਬਹੁਤ ਨਿਹੰਗ ਸਿੰਘ ਇਹ ਭੀ ਆਖਦੇ ਹਨ ਕਿ ਸ਼੍ਰੀ ਗੁਰੂ ਗੋਬਿੰਦ ਸਿੰਘ ਸ੍ਵਾਮੀ ਨੇ ਸਿੰਘਾਂ ਦੇ ਸੀਸ ਦਮਾਲੇ ਦਾ ਫਂਰਹਰਾ ਨਿਸ਼ਾਨ ਦਾ ਚਿੰਨ੍ਹ ਥਾਪਿਆ, ਪਰ ਗੁਰੁਪੁਰ- ਨਿਵਾਸੀ ਵ੍ਰਿੱਧ ਵਿਵੇਕਾ ਸਿੰਘ ਦੀ ਅਮ੍ਰਿਤਸਰੀ ਦੇ ਕਥਨ ਅਨੁਸਾਰ ਬਾਬਾ ਨੈਣਾ ਸਿੰਘ (ਨਾਰਾਇਣ ਸਿੰਘ) ਨੇ ਸਭ ਤੋਂ ਪਹਿਲਾਂ ਫ਼ੌਜ ਦੇ ਨਿਸ਼ਾਨਚੀ ਦੇ ਸਿਰ ਉੱਪਰ ਦਮਾਲਾ ਸਜਾਕੇ ਨਿਸ਼ਾਨ ਦਾ ਫਰਹਰਾ ਝੁਲਾਇਆ, ਤਾਕਿ ਉਹ ਸਭ ਤੋਂ ਅੱਗੇ ਨਿਸ਼ਾਨ ਦੀ ਥਾਂ ਭੀ ਹੋਵੇ ਅਤੇ ਹੱਥ ਵੇਹਲੇ ਹੋਣ ਕਰਕੇ ਸ਼ਸਤ੍ਰ ਭੀ ਚਲਾ ਸਕੇ.#ਬਾਬਾ ਨੈਣਾ ਸਿੰਘ ਦਾ ਚਾਟੜਾ ਅਕਾਲੀ ਫੂਲਾ ਸਿੰਘ ਸਿੱਖ ਦਲ ਵਿੱਚ ਪ੍ਰਸਿੱਧ ਸੈਨਾਪਤੀ ਹੋਇਆ ਹੈ. ਨਿਹੰਗ ਸਿੰਘ ਅਕਾਲ ਦੇ ਉਪਾਸਕ ਅਤੇ ਅਕਾਲ! ਅਕਾਲ! ਜਪਦੇ ਹਨ, ਇਸ ਕਾਰਣ "ਅਕਾਲੀ" ਨਾਮ ਭੀ ਮਸ਼ਹੂਰ ਹੋ ਗਿਆ ਹੈ. ਦੇਖੋ, ਅਕਾਲੀ.#ਨਿਹਾਲ ਸਿੰਘ ਜੀ ਨਿਹੰਗਾਂ ਬਾਬਤ ਦਸ਼ਮੇਸ਼ ਦਾ ਫ਼ਰਮਾਨ ਲਿਖਦੇ ਹਨ-#ਧਰ੍‍ਮ ਦੇ ਧੁਰੰਧਰ ਉਦਾਰਤਾ ਕੇ ਧਾਰਾਧਰ#ਭੋਲੇ ਭਾਲ ਭ੍ਰਾਜਤੇ ਝਕੋਲ ਪ੍ਰੇਮ ਰੰਦ ਮੈ,#ਸਰ੍‍ਬਲੋਹ ਪ੍ਯਾਰੇ ਅਰ੍‍ਬ ਖਰ੍‍ਬ ਲੌ ਨ ਦਰ੍‍ਬ ਬੰਧ#ਨੈਕ ਹੂੰ ਨ ਗਰ੍‍ਬ ਪੁੰਨ ਪਰ੍‍ਬ ਯਾਕੇ ਸੰਗ ਮੈ,#ਸਾਜਕੈ ਸੁਬਾਨੋ ਸੂਰ ਗਾਜਕੈ ਮ੍ਰਿਗੇਂਦ੍ਰ ਭੂਰਿ#ਭਾਜਕੈ ਗਨੀਮ ਕੋ ਬਿਦਾਰੈਂ ਜੋਰ ਜੰਗ ਮੈ,#ਮੋਦ ਕੇ ਤਰੰਗ ਮੈ ਉਮੰਗ ਕੈ ਉਤੰਗ ਪੰਥ#ਲੋਕ ਦੰਗ ਕੈਬੇ ਕੋ ਸੁ ਕੀਨੇ ਏ ਨਿਹੰਗ ਮੈ.
117. ^ फ़ा. [نِہنگ] संग्या- खड़ग. तलवार. "बाहत निहंग। उॱठत फुलिंग."(सलोह) तलवार दे प्रहार तों विस्‍फुलिंग (चिंगाड़े) निकलदे हन। २. कलम. लेखनी। ३. घड़िआल. मगरमॱछ. (मकर मत्स्य) नाकू. Alligator. "जनुक लहिर दरयाव ते निकस्यो बडो निहंग." (चरित्र २१७) ४. डिंग- घोड़ा. अश्व. तुरंग. "बिचरे निहंग। जैसे पिलंग." (विचित्र) चित्रे वांङ छालां मारदे घोड़े विचरे। ५. सं. निः शङ्क निहशंक. वि- जिस नूं मोत दी चिंता नहीं. बहादुर. दिलेर. "निरभउ होइओ भइआ निहंगा." (आसा मः ५) "पहिला दलां मिलंदिआं भेड़ पिआ निहंगा." (चंडी ३) ६. सं. निः सङ्ग- निहसंग. निरलेप. आतमग्यानी. दुंद (द्वंद्व) दा तिआगी. "निहंग कहावै सो पुरख दुख सुख मंने न अंग." (प्रापंप्र) "मुॱला ब्राहमण ना बुझै बुझै फकर निहंग." (मगो) ७. सिंघां दा इॱक फिरका, जो सीस पुर फरहरे वाला उॱचा दमाला, चक्र, तोड़ा, खंडा, क्रिपान, गजगाह आदिक शसत्र अर नीला बाणा पहिनदा है, निहंग सिंघ मरण दी शंका तिआगके हरवेले शहीदी पाउण नूं तिआर ते माइआ तों निरलेप रहिंदा है, जिस लई इह नाम है.#बहुत सिंघां तों सुणीदा है कि इॱक वार साहिबज़ादा फते सिंघ जी विलास करदेहोए सीस ते दमाला सजाके दशमेश दे हजूर आए, जिस पुर पिता जी ने फरमाइआ कि इस बाणे दा इॱक निहंगपंथ होवेगा.#कई आखदेहन कि जद कलगीधर ने उॱच- पीर वाला नीला बाणा अगनी विॱच साड़िआ, उस समें इॱक लीर कटार नाल बंन्ही, जिस तों नीलांबरी संप्रदाय चॱली, जेहा कि भाई संतोख सिंघ जी लिखदे हन- (गुप्रसू)#भाई संतोख सिंघ जी इह भी लिखदे हन कि श्री गुरू गोबिंद सिंघ जी ने भाई मान सिंघ नूं वर दिॱता कि तेरा निहंग पंथ चॱलेगा, यथा-#"है प्रसंन बर देवत जोवै।#पंथ खालसे मे तव होवै।#तुझ सम बेख¹ सुभाउ बिसाली।#नाम निहंग अनेक अकाली." (गुप्रसू)#बहुत निहंग सिंघ इह भी आखदे हन कि श्री गुरू गोबिंद सिंघ स्वामी ने सिंघां दे सीस दमाले दा फंरहरा निशान दा चिंन्ह थापिआ, पर गुरुपुर- निवासी व्रिॱध विवेका सिंघ दी अम्रितसरी दे कथन अनुसार बाबा नैणा सिंघ (नाराइण सिंघ) ने सभ तों पहिलां फ़ौज दे निशानची दे सिर उॱपर दमाला सजाके निशान दा फरहरा झुलाइआ, ताकि उह सभ तों अॱगे निशान दी थां भी होवे अते हॱथ वेहले होण करके शसत्र भी चला सके.#बाबा नैणा सिंघ दा चाटड़ा अकाली फूला सिंघ सिॱख दल विॱच प्रसिॱध सैनापती होइआ है. निहंग सिंघ अकाल दे उपासक अते अकाल! अकाल! जपदे हन, इस कारण "अकाली" नाम भी मशहूर हो गिआ है. देखो, अकाली.#निहाल सिंघ जी निहंगां बाबत दशमेश दा फ़रमान लिखदे हन-#धर्‍म देधुरंधर उदारता के धाराधर#भोले भाल भ्राजते झकोल प्रेम रंद मै,#सर्‍बलोह प्यारे अर्‍ब खर्‍ब लौ न दर्‍ब बंध#नैक हूं न गर्‍ब पुंन पर्‍ब याके संग मै,#साजकै सुबानो सूर गाजकै म्रिगेंद्र भूरि#भाजकै गनीम को बिदारैं जोर जंग मै,#मोद के तरंग मै उमंग कै उतंग पंथ#लोक दंग कैबे को सु कीने ए निहंग मै.
118. ^ Singh, Khushwant (1999). A History of the Sikhs Voghzlume I:1469-1839. India: Oxford University Press. p. 215\. ISBN 0-19-562643-5.
119. ^ PHOTIUS (1977). Bibliothèque. Tome VIII : Codices 257–280 (in French and Ancient Greek). Texte établi et traduit par R. Henry. Paris: Les Belles Lettres. p. 93\. ISBN 978-2-251-32227-8.
120. ^ John Ashton (2009). Curious creatures in zoology. ISBN 978-1-4092-3184-4.
121. ^ Britton, Adam (n.d.). Do crocodiles cry 'crocodile tears'? Crocodilian Biology Database. Retrieved 13 March 2006 from the Crocodile Specialist Group, Crocodile Species List, FAQ.
122. ^ Irwan Rouf; Shenia Ananda (2013). Rangkuman 100 Cerita Rakyat Indonesia: Dari Sabang Sampai Merauke. AnakKita. p. 60\. ISBN 978-602-9003-82-6.
123. ^ "Welcome to Surabaya City, East Java". Surabaya Tourism, EastJava.com. Retrieved 17 November 2014.
124. ^ Martin H. Manser, Turton and Nigel D. Turton Advanced Learner's Dictionary, p. 164, at Google Books
125. ^ Angela Brazil The Nicest Girl in the School, p. 50, at Google Books

## Further reading[edit | edit source]

* Iskandar, DT (2000). Turtles and Crocodiles of Insular Southeast Asia and New Guinea. ITB, Bandung.
* Crocodilian Biology Database, FAQ. FLMNH.ufl.edu, "How long do crocodiles live for?"  [sic] Adam Britton.
* Crocodilian Biology Database, FAQ. FLMNH.ufl.edu, "How fast can a crocodile run?" Adam Britton.

## External links[edit | edit source]

File:Wiktionary-logo-en-v2.svg

Look up crocodile in Wiktionary, the free dictionary.

Wikispecies has information related to Crocodylidae.

Wikiversity has learning resources about Crocodile

* Media related to Crocodile at Wikimedia Commons
* Crocodilian Online
* Crocodilian Biology Database
* Crocodile Attacks in Australia
* BBC news finds powerful agent in crocodile blood
* World's most expensive handbag sells in Hong Kong for over US$377,000 – a Hermès white crocodile (31 May 2017), South China Morning Post
* 292 New Guinea crocodiles massacred in West Papua, Indonesia

* v
* t
* e

Extant Crocodilian species

* Kingdom: Animalia
* Phylum: Chordata
* Class: Reptilia
* (unranked): Archosauria
* Superorder: Crocodylomorpha

Family Gavialidae

| Gavialis|

* Gharial (G. gangeticus)

|

Tomistoma|

* False gharial (T. schlegelii)

Family Alligatoridae

| Alligatorinae
(Alligators)|

| Alligator|

* American alligator (A. mississippiensis)
* Chinese alligator (A. sinensis)

|

Caimaninae
(Caimans)|

| Caiman|

* Broad-snouted caiman (C. latirostris)
* Spectacled caiman (C. crocodilus)
* Yacare caiman (C. yacare)

|

Melanosuchus|

* Black caiman (M. niger)

Paleosuchus|

* Cuvier's dwarf caiman (P. palpebrosus)
* Smooth-fronted caiman (P. trigonatus)

Family Crocodylidae (Crocodiles)

| Crocodylinae|

| Crocodylus|

* American crocodile (C. acutus)
* Hall's New Guinea crocodile (C. halli)
* Orinoco crocodile (C. intermedius)
* Freshwater crocodile (C. johnstoni)
* Philippine crocodile (C. mindorensis)
* Morelet's crocodile (C. moreletii)
* Nile crocodile (C. niloticus)
* New Guinea crocodile (C. novaeguineae)
* Mugger crocodile (C. palustris)
* Saltwater crocodile (C. porosus)
* Borneo crocodile (C. raninus)
* Cuban crocodile (C. rhombifer)
* Siamese crocodile (C. siamensis)
* West African crocodile (C. suchus)

|

Osteolaeminae

| Mecistops|

* West African slender snouted crocodile (Mecistops cataphractus)
* Central African slender-snouted crocodile (Mecistops leptorhynchus)

|

Osteolaemus|

* Dwarf crocodile (O. tetraspis)
* Osborn’s dwarf crocodile (O. osborni)

* v
* t
* e

Extinct crocodilians

* Kingdom: Animalia
* Phylum: Chordata
* Class: Sauropsida
* Clade: Pseudosuchia
* Clade: Eusuchia

| Pseudosuchia|

*     * see Pseudosuchia

Neosuchia|

*     * see Neosuchia

Crocodilia|

*     * see below↓

Basal crocodilians

| Mekosuchinae|

* Australosuchus?
* Baru
* Harpacochampsa?
* Kalthifrons
* Kambara
* Mekosuchus
* Paludirex
* Quinkana?
* Trilophosuchus
* Ultrastenos
* Volia

|

Others|

* Arenysuchus?
* Asiatosuchus
* Borealosuchus?
* Brachyuranochampsa
* Charactosuchus
* "Crocodylus" acer
* "Crocodylus" affinis
* Portugalosuchus?
* Pristichampsus?
* Prodiplocynodon
* Planocraniidae?

Alligatoroidea

Alligatoroidea

* Deinosuchus
* Diplocynodon
* Leidyosuchus
* Listrognathosuchus

Globidonta

* Albertochampsa
* Arambourgia
* Brachychampsa
* Ceratosuchus
* Deinosuchus?
* Eocaiman
* Hassiacosuchus
* Leidyosuchus?
* Navajosuchus
* Procaimanoidea?
* Stangerochampsa

Orientalosuchina|

* Dongnanosuchus
* Eoalligator
* Jiangxisuchus
* Krabisuchus
* Orientalosuchus
* Protoalligator

Alligatoridae

* Balanerodus?
* Lianghusuchus?
* Menatalligator?
* Sajkanosuchus?

| Alligatorinae|

* Akanthosuchus?
* Allognathosuchus
* Arambourgia?
* Ceratosuchus?
* Chrysochampsa
* Hassiacosuchus?
* Navajosuchus?
* Procaimanoidea?
* Wannaganosuchus?

Alligator|

* A. hailensis
* A. mcgrewi
* A. mefferdi
* A. olseni
* A. prenasalis
* A. thomsoni

Caimaninae|

* Acresuchus
* Bottosaurus
* Brachychampsa?
* Centenariosuchus
* Ceratosuchus?
* Chinatichampsus
* Culebrasuchus
* Eocaiman?
* Globidentosuchus
* Gnatusuchus
* Kuttanacaiman
* Mourasuchus
* Necrosuchus
* Orthogenysuchus
* Protocaiman
* Purussaurus
* Stangerochampsa?
* Tsoabichi
* Wannaganosuchus?

Melanosuchus|

* M. fisheri
* M. latrubessei

Caiman|

* C. australis
* C. brevirostris
* C. gasparinae
* C. venezuelensis
* C. wannlangstoni

Deinosuchus riograndensis Purussaurus brasiliensis

Longirostres

Crocodyloidea

* Albertosuchus
* Astorgosuchus
* Australosuchus?
* "Crocodylus" affinis?
* "Crocodylus" megarhinus
* Jiangxisuchus?
* Mekosuchinae?

Crocodylidae

* Aldabrachampsus
* Dzungarisuchus?
* Oxysdonsaurus?

Osteolaeminae|

* Brochuchus
* "Crocodylus" gariepensis
* Euthecodon
* Rimasuchus
* Kinyang

Crocodylinae|

* "Crocodylus" megarhinus?
* Quinkana?
* Tzaganosuchus?
* Voay

Crocodylus|

* C. anthropophagus
* C. checchiai
* C. falconensis
* C. palaeindicus
* C. thorbjarnarsoni

Gavialoidea

* Dollosuchoides
* Dollosuchus
* Ferganosuchus
* Gavialosuchus
* Gunggamarandu
* Kentisuchus
* Leptorrhamphus?
* Maomingosuchus
* Maroccosuchus
* Megadontosuchus
* Ocepesuchus
* Paratomistoma
* Thecachampsa
* Tienosuchus?
* "Tomistoma" cairense
* "Tomistoma" lusitanica

Gavialidae

* Sacacosuchus

| Tomistominae
sensu stricto|

* Brasilosuchus?
* Gavialosuchus?
* Melitosaurus
* Paratomistoma?
* Thecachampsa?

Tomistoma|

* T. calaritanum?
* T. gaudense?
* T. lusitanica?
* T. taiwanicus?

Gavialinae
sensu lato|

* Aktiogavialis
* Dadagavialis
* Gavialosuchus?
* Gryposuchus
* Hanyusuchus
* Harpacochampsa?
* Hesperogavialis
* Ikanogavialis
* Maomingosuchus?
* Paratomistoma?
* Penghusuchus
* Piscogavialis
* Rhamphosuchus
* Siquisiquesuchus
* "Tomistoma" cairense?
* "Tomistoma" coppensi
* "Tomistoma" dowsoni
* Toyotamaphimeia

Gavialis|

* G. bengawanicus
* G. breviceps?
* G. browni?
* G. curvirostris?
* G. leptodus?
* G. lewisi?
* G. pachyrhynchus?
* G. papuensis?

Crocodylus anthropophagus Hanyusuchus sinensis

* See also: Brevirostres
* Gryposuchinae

* v
* t
* e

Related articles on alligators, caimans, crocodiles and gharials

Topics|

* Crocodilian armor
* Foramen of Panizza
* Gastralium
* List of crurotarsan genera
* Madras Crocodile Bank Trust
* The Croc Festival

Human
interaction|

* Fatal alligator attacks
* Crocodile attacks
* Crocodile farm
* Crocodile tears
* Famous crocodiles and alligators
* Sewer alligator

* v
* t
* e

Meat

Poultry|

* Cassowary
* Chicken
* Duck
* Emu
* Goose
* Ostrich
* Pigeon
* Quail
* Rhea
* Turkey

Food meat
Platter of seafood

Livestock|

* Alpaca
* Beef
* Beefalo
* Bison
* Buffalo
* Camel
* Cat
* Goat
* Dog
* Donkey
* Elephant
* Escargot
* Frog
* Guinea pig
* Horse
* Lamb and mutton
* Llama
* Pork
* Veal
* Yak
* Żubroń

Game|

* Alligator
* Bat
* Bear
* Boar
* Crocodile
* Iguana
* Kangaroo
* Monkey
* Pangolin
* Rat
* Hare
* Rabbit
* Snake
* Turtle
* Venison
* Wolf

Fish|

* Anchovy
* Basa
* Bass
* Carp
* Catfish
* Cod
* Crappie
* Eel
* Flounder
* Grouper
* Haddock
* Halibut
* Herring
* Kingfish
* Mackerel
* Mahi Mahi
* Marlin
* Milkfish
* Orange roughy
* Pacific saury
* Perch
* Pike
* Pollock
* Salmon
* Sardine
* Shark
* Sole
* Swai
* Swordfish
* Tilapia
* Trout
* Tuna
* Walleye

Shellfish and
other seafood|

* Abalone
* Calamari
* Clam
* Crab
* Crayfish
* Dolphin
* Lobster
* Mussel
* Octopus
* Oyster
* Scallop
* Seal
* Shrimp/prawn
* Sea urchin
* Whale

Insects|

* Black soldier fly maggots
* Cicada
* Crickets
* Grasshoppers (locust)
* Mealworm
* Silkworm
* Mopane worm
* Palm grub

Cuts and
preparation|

* Aged
* Bacon
* Barbecued
* Biltong
* Braised
* Burger
* Charcuterie
* Chop
* Corned
* Cured
* Cutlet
* Dried
* Dum
* Fillet/supreme
* Fried
* Ground
* Ham
* Kebab
* Liver
* Luncheon meat
* Marinated
* Meatball
* Meatloaf
* Offal
* Pickled
* Poached
* Roasted
* Salt-cured
* Salumi
* Sausage
* Smoked
* Steak
* Stewed
* Tandoor
* Tartare

List articles|

| Meat dishes|

* Beef
* Chicken
* Fish
* Goat
* Lamb
* Pork
* Ham
* Seafood
* Veal
* Steaks
* Meatball
* Smoked foods
* Sausage

|

Other|

* Countries by meat consumption
* Food and drink prohibitions
* Meat substitutes

Ethics and psychology|

* Ethics of eating meat
* Carnism
* Animal rights
* Psychology of eating meat
* Meat paradox

Alternatives|

* Vegetarianism
* Semi-vegetarianism
* Pescetarianism
* Pollotarianism
* Plant-based diet
* Meat analogue
* Veganism

Related
subjects|

* Arachnophagy
* Bushmeat
* Butcher
* Cannibalism
* Case-ready meat
* Cultured meat
* Entomophagy
* Factory farming
* Feed conversion ratio
* Environmental impact
* Marbled
* Meat cutter
* Meat science
* Meat tenderness
* Non-vegetarian
* Pink slime
* Preservation
* Raw meat
* Red meat
* Slaughter
* Slaughterhouse
* White meat

*   * Category: Meat

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