Parrotfish make themselves a kind of mucus 'sleeping bag' which masks their smell from predators and keeps parasites away.
4
Vanilla flavoring is sometimes made with an ingredient from beaver pee.
82
The oldest creature ever found was Ming the clam at an admirable 507 years old.
16
The cat brain weighs about 30g.
167
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14