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An axolotl undergoing metamorphosis experiences a number of physiological changes that help them adapt to life on land. These include increased muscle tone in limbs, the absorption of gills and fins into the body, the development of eyelids, and a reduction in the skin's permeability to water, allowing the axolotl to stay more easily hydrated ...
Traditionally considered a subclass of the class Amphibia, modern classification systems recognize that labyrinthodonts are not a formal natural group exclusive of other tetrapods. Instead, they consistute an evolutionary grade (a paraphyletic group ), ancestral to living tetrapods such as lissamphibians (modern amphibians) and amniotes ...
Amphibian Species of the World: an Online Reference. Version 6.0. American Museum of Natural History. New York, USA; AmphibiaWeb. Information on amphibian biology and conservation. (2012). "List of Amphibians in the United States (database query web application)". Berkeley, California: AmphibiaWeb
Sasha (who now works as a children's psychologist) and Marcy (who now works as a webcomic author) go to see Anne for her 23rd birthday. Anne now works as a herpetologist at the Aquarium of the Pacific, where she remodeled the amphibian section to look exactly like Amphibia, even naming a little pink frog Sprig. She then leaves to celebrate her ...
Eocaecilia, an Early Jurassic amphibian commonly considered one of the oldest (stem-group) caecilians. Little is known of the evolutionary history of the caecilians, which have left a very sparse fossil record. The first fossil, a vertebra dated to the Paleocene, was not discovered until 1972. [44]
The mole salamanders (genus Ambystoma) are a group of advanced salamanders endemic to North America. The group has become famous due to the study of the axolotl (A. mexicanum) in research on paedomorphosis, and the tiger salamander (A. tigrinum, A. mavortium) which is often sold as a pet, and is the official amphibian of four US states.
The Amphibian Fauna of Peninsular Malaysia. Kuala Lumpur: Tropical Press. Inger, Robert F. (1966). The Systematics and Zoogeography of the Amphibia of Borneo. Chicago (IL): Field Museum of Natural History. ISBN 983-99659-0-5. Inger, Robert F.; Stuebing, Robert B. (1997). A Field guide to the Frogs of Borneo (2nd ed.). Kota Kinabalu, Borneo ...
Temnospondyli (from Greek τέμνειν, temnein 'to cut' and σπόνδυλος, spondylos 'vertebra') or temnospondyls is a diverse ancient order of small to giant tetrapods—often considered primitive amphibians—that flourished worldwide during the Carboniferous, Permian and Triassic periods, with fossils being found on every continent.