Fish
An animal that cannot keep its body temperature steady but instead takes on the temperature of its surroundings.
What is cold-blooded?
Found on the feet of reptiles.
What are claws?
Any animal that at some time in its life has a large nerve cord running down its back.
What is a chordate?
The step before frogs grow front legs and heir tail shortens.
What is tadpoles grow hind legs?