The oldest creature ever found was Ming the clam at an admirable 507 years old.
16
Using a remote-controlled camera, biologists caught dolphins getting high by sucking on puffer fish. They were even caught passing the puffer fish around.
23
Cats and dogs can hear ultrasound.
350
Cows as they are today never existed in the wild and were domesticated from aurochs some 10,500 years ago.
6
Sifrhippus was a species of horse about the size of an average duck and roamed North America 56 million years ago.
2
Parrotfish make themselves a kind of mucus 'sleeping bag' which masks their smell from predators and keeps parasites away.
4