The top documents tagged [semiterrestrial adults]

Amphibians youtube/watch?v=LTFmOEy6M-o

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37 views

Classification of vertebrate animals. Vertebrates Tetrapods Chondrichthyes (sharks, rays) Actinistia (coelacanths) Actinopterygii (ray-finned fish) Petromyzontiformes.

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237 views

Amphibians

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31 views