Bats sleep 18-20 hours per day.
5
Penguins have a gland above their eye that turns saltwater into freshwater.
12
Cats and dogs can hear ultrasound.
350
An Indian man known as "Snake Manu" can put small snakes, including deadly cobras, into his mouth and pass them out through his nose.
59
It has been scientifically proven that stroking a cat can lower one's blood pressure!
456
In 1949, an official boxing match between a bear and a man was held. The bear won.
41
Allegedly, Chrysippus, the Greek philosopher, died of laughter after getting his donkey drunk and watching it try to eat figs.
47
Sloths take two weeks to digest their food.
243