Sloths take two weeks to digest their food.
243
A group of kittens is called a "kindle".
10
When a male gentoo penguin "falls in love" with a female penguin, he searches the entire beach to find the perfect pebble to present to her.
25
When Koko, the gorilla famous for knowing sign language, was asked where gorillas go after death, she responded by signing “Comfortable hole, bye.”
23
Ants have tiny magnetic compasses in their antennae which help them navigate.
9
Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
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