classification of vertebrates animals. mammals, birds, reptiles, amphibians, fish.

africa african alligator amphibian angelfish animal bald biological biology bird blood blooded boa classification cold crocodile diagram eagle education fauna fish frog illustration kangaroo life lionfish mammal newt peacock peafowl penguin pterois python reptile reptiles sailfish salamander science scientific seal snake species swordfish tiger vector vertebrates wallaby warm wild wildlife zoology