There are more than 360 described species of sharks.

There are eight orders of sharks:

* Hexanchiformes* Squaliformes* Pristiophoriformes* Squatiniformes* Heterodontiformes* Orectolobiformes* Carcharhiniformes* Lamniformes

Everything from tiny plant to whales!

The teeth of carnivorous sharks are not attached to the jaw, but embedded in the flesh, and in many species are constantly replaced throughout the shark's life; some sharks can lose 30,000 teeth in a lifetime.