When Washoe, the first chimp to use sign language, was told that her caretaker's baby had died, she signed "CRY."
20
Mahatma Gandhi used to travel with his goat so that he could have fresh milk.
11
Dire wolves actually existed, living up to 10,000 years ago before going extinct.
10
The elephant brain weighs about 6,000g.
274
Dogs sometimes fake being sick to get attention.
26
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