One reason that kittens sleep so much is because a growth hormone is released only during sleep.
212
When the "Elephant Whisperer" Lawrence Anthony died, a whole herd of elephants arrived at his house to mourn him.
25
Bats sleep 18-20 hours per day.
5
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
There’s a bonobo named Kanzi who has learned to build a campfire and cook his own food.
8
It has been estimated that a bite from a grizzly bear can crush a bowling ball.
11