Vanilla flavoring is sometimes made with an ingredient from beaver pee.
82
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
One reason that kittens sleep so much is because a growth hormone is released only during sleep.
212
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
Queen ants have one of the longest life-spans of any known insect - typically up to 30 years. Western harvester ant queens can live up to 40 years!
2
Parrotfish make themselves a kind of mucus 'sleeping bag' which masks their smell from predators and keeps parasites away.
4
The oldest creature ever found was Ming the clam at an admirable 507 years old.
16
Alligators can live up to 100 years.
337