Parrot parents "name" their children with a signature call.
112
Gorillas can catch human colds and other illnesses.
205
Only 3% of bird species have penises.
0
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
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