Cats are one of the only animals to domesticate themselves and approach humans on their own terms.
20
One reason that kittens sleep so much is because a growth hormone is released only during sleep.
212
Drivers kill more deer than hunters do.
660
The largest earthworm on record was found in South Africa and measured 22 feet.
151
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
When Washoe, the first chimp to use sign language, was told that her caretaker's baby had died, she signed "CRY."
20
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14