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The world's smallest known vertebrate, Paedophryne amauensis, sitting on a U.S. dime.The dime is 17.9 mm in diameter, for scale. The word amphibian is derived from the Ancient Greek term ἀμφίβιος (amphíbios), which means 'both kinds of life', ἀμφί meaning 'of both kinds' and βίος meaning 'life'.
The characters of Amphibia, a world of anthropomorphic frogs and other amphibians. Bullfrog from the adult animated show Captain Laserhawk: A Blood Dragon Remix; Crazy Frog; Kermit the Frog and Robin the Frog from The Muppets; Michigan J. Frog, star of the Looney Tunes short One Froggy Evening and onetime mascot of The WB
X-ray showing the skeleton of Typhlonectes (Typhlonectidae). Caecilians' anatomy is highly adapted for a burrowing lifestyle. In a couple of species belonging to the primitive genus Ichthyophis vestigial traces of limbs have been found, and in Typhlonectes compressicauda the presence of limb buds has been observed during embryonic development, remnants in an otherwise completely limbless body. [7]
Its skull shows evidence of muscles not found in any other organism. [6] The Vienna specimen of Atretochoana is a large caecilian at a length of 72.5 cm (28.5 in), [7] while the Brasília specimen is larger still at 80.5 cm (31.7 in). [8] By comparison, caecilians in general range in length from 11 to 160 cm (4.3 to 63.0 in). [7]
The vertebrates include mammals, birds, amphibians, and various classes of fish and reptiles. The fish include the jawless Agnatha, and the jawed Gnathostomata. The jawed fish include both the cartilaginous fish and the bony fish. Bony fish include the lobe-finned fish, which gave rise to the tetrapods, the animals with four limbs.
Greater siren out of water. Greater sirens are carnivorous and prey upon invertebrates (such as insects, crustaceans, gastropods, bivalves, spiders, molluscs, and crayfish) [11] and aquatic vertebrates (such as small fish) [11] with a possible preference for molluscs (such as snails and freshwater clams), [8] [12] although they have been observed to eat vegetation such as algae.
By RYAN GORMAN Horrifying video has emerged of doctors pulling maggots out of a man's ear. The unidentified Indian man went to a doctor's office to complain about hearing a non-stop buzzing sound.
Of the tailless amphibians (the frogs and toads of the sub-class Anura) the majority are aquatic to an insignificant extent in adult life, but in that considerable minority that are mainly aquatic we encounter for the first time the problem of adapting the tailless-tetrapod structure for aquatic propulsion. The mode that they use is unrelated ...