Dolphins have names for one another.
18
Cats are one of the only animals to domesticate themselves and approach humans on their own terms.
20
Sharks, like other fish, have their reproductive organs in their chests.
248
Parrotfish make themselves a kind of mucus 'sleeping bag' which masks their smell from predators and keeps parasites away.
4
Allegedly, Chrysippus, the Greek philosopher, died of laughter after getting his donkey drunk and watching it try to eat figs.
47
Dogs have been man's pet for over 14,000 years.
224
A tortoise named Adwaita lived to 255 years old. To put it into perspective, he was born before the United States of America existed and his death was announced on CNN (1750-2006).
12