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Instead, they consistute an evolutionary grade (a paraphyletic group), ancestral to living tetrapods such as lissamphibians (modern amphibians) and amniotes (reptiles, mammals, and kin). "Labyrinthodont"-grade vertebrates evolved from lobe-finned fishes in the Devonian , though a formal boundary between fish and amphibian is difficult to define ...
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The decline in amphibian and reptile populations has led to an awareness of the effects of pesticides on reptiles and amphibians. [177] In the past, the argument that amphibians or reptiles were more susceptible to any chemical contamination than any land aquatic vertebrate was not supported by research until recently. [ 177 ]
Unlike amphibians, reptiles do not have an aquatic larval stage. Most reptiles are oviparous, although several species of squamates are viviparous, as were some extinct aquatic clades [6] – the fetus develops within the mother, using a (non-mammalian) placenta rather than contained in an eggshell. As amniotes, reptile eggs are surrounded by ...
The list below largely follows Darrel Frost's Amphibian Species of the World (ASW), Version 5.5 (31 January 2011). Another classification, which largely follows Frost, but deviates from it in part is the one of AmphibiaWeb , which is run by the California Academy of Sciences and several of universities.
List of amphibians; List of reptiles; Prehistoric amphibian; Create articles for aspects of amphibian and reptile biology, such as snake scales and vocal sac. Copyedit current article text to coincide with Wikipedia:Naming conventions (fauna) (e.g., convert "Coral Snake" to "coral snake").
J. Whitfield Gibbons observes that the book holds a wide-ranging appeal, serving as "an essential resource for amateur and professional herpetologists" while also offering valuable insights for individuals intrigued by the histories and biology of exotic amphibians and reptiles. He notes that the book could prove invaluable to land managers ...
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