Why are sharks amazing creatures?

Well, I could go on and on why sharks are awesome, but I'll just list some of them:

1. Sharks have six sense's, instead of just five like us

2. Some sharks, (Great White's, Mako sharks, etc.) can leap twenty feat out of the water

3. Whale sharks have more than two eyes

4. Sharks where alive before dinosaurs.

5. Some sharks, (like Caribbean Reef sharks) can sleep, they just don't need to close there eyes