These are small pits that cover large areas of skin near the mouth and nose on the shark's snout. They are natural electrical sensors which, at close range, can detect the weak electrical fields generated by all animals. An animal's disguise, usually through color, that enables it to blend in with its surroundings Carnivore An animal that eats only meat.
All sharks are carnivores.
Cartilage A tough, white, flexible material that is mostly made from protein. A shark's skeleton is made of cartilage. Many sharks, especially those that live near the surface, are a a dark color on their backs and a lighter color on their bellies. Crepuscular An animal that is active at dawn and at dusk. Dermal denticles Shark skin is covered by a layer of small tooth-like structures called dermal denticles.