Did you know that sharks have been around for about 400 million years?
That is a long time.
That is even before dinosaurs roamed the earth.
Since they are such good survivors, they have not evolved much in the last 150 million years.
Sharks have the most powerful jaws on the planet.
First, a shark uses it's lower jaw to bite and then uses it's upper jaw.
A shark shakes it's head back and forth to tear loose a piece of meat which it swallows whole.