Most sharks eat animals smaller then there selves.  That ranges from claims, squid, and fish.  Some sharks eat large mammals, such as sea lions, dolphins, and dead or dying whales.  Most sharks though do not swallow their pray hole, usually small stuff.  They mostly eat at dusk.
	A shark can eat one good meal and be satisfied.  Some sharks are fast swimmers that catch fish with their sharp, pointed teeth.  Still others search the coastline for seals, dolphins, and seabirds.  Many are bottom dwellers that feed on crabs and shellfish in the ocean.
Sharks can pick up the sent of blood or other body fluids.  It's sense of smell of is so sensitive that it can detect one part of blood in many millions of parts of water.  It sometimes can lead the shark to it's prey.  Usually sharks swim alone but if there is prey a group of sharks may gather.  When a shark wants it's prey they will circle very cautiously and then bump it so it won't run away and then eat it.  Not all sharks have big teeth to catch things with.
	A sharks tooth has an inner bone layer that contains a nerve and blood vessels.  The layer is covered by and outer layer of enamel that makes the tooth very hard and durable.  Sharks do not chew there food because they do not have molars, and there jaws are not designed for grinding food.  They have five to ten rows of teeth in their mouths.  They can taste there food because they have taste bubs all throw there throats and mouths.