Hippopotamus facts

1) The closest relations of the hippopotamus are whales and dolphins.

2) Hippopotamuses give birth under water.

3) They can eat over 60kg of grass each night.

4) On land they are surprisingly fast reaching speeds of up to 40km per hour which is faster than Usain Bolt.

5) The male hippo attracts a female by using his tail to spray her with his feces.