Cats are one of the only animals to domesticate themselves and approach humans on their own terms.
20
Only 3% of bird species have penises.
0
Macaques monkeys in Japan learned to steal purses and wallets, take out the coins, and use them to buy drinks and snacks from vending machines.
26
Penguins have a gland above their eye that turns saltwater into freshwater.
12
Sifrhippus was a species of horse about the size of an average duck and roamed North America 56 million years ago.
2
An alligator can go through 2,000 to 3,000 teeth in a lifetime.
268
Sandy, an African Penguin, has been in 'love' with her keeper at the Nuremburg zoo since 1996.
34