reptile


Crocodiles, snakes, lizards and turtles are all reptiles. Most reptiles live on land, and most lay eggs.  They are vertebrates, and, unlike any other animals, are covered with scales.  They are cold-blooded and regulate theri boyd temperature by seeking or avoiding the sun's heart.

 


crocodile, turtle, snake and lizard
http://en.wikipedia.org/wiki/Reptile