* sharks have gills that help them breath and move.
* Sharks have a pointy fin as their tail.
* Sharks do not have bones they have cartiledge. Cartiledge is like your ear and is soft and bendy.
*they are made of cartiledge.
*they have been around for over 400 million years.
*when sharks are a sleep they are moving.
*there only 4 types of sharks that will kill you.