Crocodiles have been out there for 100 million years, and they used to rule the world. Nowadays, there are only 23 species of crocodiles, and they urgently need protection against total destruction. Various crocodiles can be found in Africa, Asia and America, and they reside in rivers, lakes, canals and so forth. Their scaly hides provide reliable protection for the body, and their powerful jaws provide for deadly grip.