TOP 7 facts you never knew

0. A hippopotamus can run faster than a man.
1. A crocodile cannot stick its tongue out.
2. Most insects hatch from eggs.
3. Pigs can?t look up into the sky ? it?s physically impossible.
4. The shark is the only fish that can blink with both eyes.
5. An ostrich?s eye is bigger than its whole brain.
6. Kangaroos can?t walk backwards.
7.A dog?s nose is like a human finger print ? unique to its owner.