Bimodal reproduction is the ability of a vertebrate animal to reproduce by both laying eggs and giving birth.[ 1] [ 2] [ 3] [ 4] [ 5] [ 6] [excessive citations ] Examples of these animals include Saiphos equalis and Zootoca vivipara ,[ 7] [ 8] [ 9]
^ "This Lizard Is in the Middle of a Wild Evolutionary Transition, Scientists Believe - VICE" . Vice.com . 6 April 2020.
^ Beltrán, Iván; Loiseleur, Rebecca; Durand, Victorien; Whiting, Martin J. (2020). "Effects of early thermal environment on the behavior and learning of a lizard with bimodal reproduction" . Behavioral Ecology and Sociobiology . 74 (6): 73. Bibcode :2020BEcoS..74...73B . doi :10.1007/s00265-020-02849-6 . S2CID 219183603 .
^ Beltrán, Iván; Loiseleur, Rebecca; Durand, Victorien; Whiting, Martin J. (June 7, 2020). "Effects of early thermal environment on the behavior and learning of a lizard with bimodal reproduction" . Behavioral Ecology and Sociobiology . 74 (6): 73. Bibcode :2020BEcoS..74...73B . doi :10.1007/s00265-020-02849-6 . S2CID 219183603 – via researchers.mq.edu.au.
^ Beltrán, Iván; Durand, Victorien; Loiseleur, Rebecca; Whiting, Martin J. (November 7, 2020). "Effect of early thermal environment on the morphology and performance of a lizard species with bimodal reproduction". Journal of Comparative Physiology B: Biochemical, Systemic, and Environmental Physiology . 190 (6): 795– 809. doi :10.1007/s00360-020-01312-2 . PMID 32951106 . S2CID 221828354 .
^ "Egg-laying lizard also gives live birth. Is this evolution before our eyes?" . The University of Sydney .
^ "Lizard produces eggs and live young" . Cosmos Magazine . April 2, 2019.
^ Foucart, Thomas; Lourdais, Olivier; DeNardo, Dale F.; Heulin, Benoit (November 15, 2014). "Influence of reproductive mode on metabolic costs of reproduction: insight from the bimodal lizard Zootoca vivipara" . Journal of Experimental Biology . 217 (22): 4049– 4056. doi :10.1242/jeb.104315 . PMID 25278472 – via jeb.biologists.org.
^ Heulin, Benoit; Kirsten Osenegg-Leconte; David Michel (1997). "Demography of a Bimodal Reproductive Species of Lizard (Lacerta vivipara): Survival and Density Characteristics of Oviparous Populations" . Herpetologica . 53 (4): 432– 444. JSTOR 3893257 .
^ "This lizard lays eggs and gives live birth. We think it's undergoing a major evolutionary transition" . theconversation.com . 2 April 2020.