Lobsters have blue blood.
476
A dork is a whale's penis.
327
A cow produces around 200,000 glasses of milk in her lifetime.
373
In Australia, there are spiders big enough to eat snakes.
20
Cats sleep for 70% of their lives.
8
Elephants are among the most emotional creatures in the world - they have even been known to rescue other animals, such as trapped dogs.
25
A duck's quack doesn't echo, and no one knows why.
173