Bats sleep 18-20 hours per day.
5
Cats recognise the voice of their owner, but never evolved to care.
22
In 1949, an official boxing match between a bear and a man was held. The bear won.
41
Jaguars frequently get high by eating hallucinogenic roots, which also increases their senses for hunting.
6
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
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132