Search results
Results from the WOW.Com Content Network
This page was last edited on 28 December 2013, at 23:30 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.
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.
Amphibians are ectothermic, anamniotic, four-limbed vertebrate animals that constitute the class Amphibia. In its broadest sense, it is a paraphyletic group encompassing all tetrapods excluding the amniotes (tetrapods with an amniotic membrane , such as modern reptiles , birds and mammals ).
The ovaries of the female frog are beside the kidneys and the eggs pass down a pair of oviducts and through the cloaca to the exterior. [79] When frogs mate, the male climbs on the back of the female and wraps his fore limbs round her body, either behind the front legs or just in front of the hind legs.
The fish's hyomandibula bone in the hyoid region behind the gills diminished in size and became the stapes of the amphibian ear, an adaptation necessary for hearing on dry land. [24] An affinity between the amphibians and the teleost fish is the multi-folded structure of the teeth and the paired supra-occipital bones at the back of the head ...
A Checklist of North American Amphibians and Reptiles: The United States and Canada. Vol. 1 - Amphibians. Xlibris Corporation LLC. ISBN 978-1-4931-7035-7. [self-published source] Cope, Edward D. (1875). Check-list of North American Batrachia and Reptilia; with a systematic list of the higher groups, and an essay on geographical distribution.
Amphibian anatomy (16 P) Amphibian common names (12 P) Amphibian diseases (1 P) Amphibian hormones (1 P) Amphibian redirects (5 C) Amphibians by year of formal ...
Amphibian Species of the World 6.2: An Online Reference (ASW) is a herpetology database. It lists the names of frogs, salamanders and other amphibians , which scientists first described each species and what year, and the animal's known range.