Sharks are known for their pearly whites, but did you know that a shark can shed more than 30,000 teeth over its lifespan? Unlike humans, who have a single set of 32 permanent teeth, when a shark ...

They are large-bodied and display a mouthful of sharp teeth that protrude in all ... in size from 6.5 to 10.5 feet in length. Sand tigers are the only shark known to come to the surface and ...