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Learn about amphibians, small vertebrates that need water to survive, and their special features, such as their skin glands, egg-larva-adult life cycle, and ability to produce useful proteins. Explore photos, videos, and stories of different amphibian species, from frogs and toads to salamanders and newts, and their challenges and conservation.
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 ).
18 de mar. de 2024 · Learn about amphibians, the vertebrate animals that can live in water and on land. Find out how they evolved, what they look like, and how they reproduce in this comprehensive article from Britannica.
28 de oct. de 2022 · Learn about amphibians, the vertebrates that can live both on land and in water. Discover their unique traits, different types, and see photos of various amphibians.
American Bullfrog. Learn More. Cane Toad. Learn More. Mexican Axolotl. Learn More. Poison Dart Frog. Learn More. Red-Eyed Tree Frog. Learn More. Amphibians are cold-blooded vertebrates...
27 de sept. de 2022 · La clase Amphibia se divide en tres órdenes: Orden Gymnophiona (Apoda), integrada por las cecilias; Orden Urodela (Caudata) llamadas comúnmente salamandras, y el Orden Anura (Salientia) formado por ranas, sapos y afines. A continuación describiremos cada una de las características de casa clase: Orden Gymnophiona (Apoda)
Los anfibios ( Amphibia, del griego ἀμφί, amphí ('ambos') y βίος, bíos ('vida'), que significa «ambas vidas» o «en ambos medios») son una clase de animales vertebrados anamniotas (sin amnios, al igual que los peces ), tetrápodos, ectotérmicos, con respiración branquial durante la fase larvaria y pulmonar al alcanzar el estado adulto.
