There was a bear called Wojtek who was adopted by Polish soldiers during WW2. It carried ammunition, wrestled with soldiers, and drank beer.
40
Squirrels forget where they hide about half of their nuts.
698
The elephant brain weighs about 6,000g.
274
Bats sleep 18-20 hours per day.
5
One reason that kittens sleep so much is because a growth hormone is released only during sleep.
212
Alligator snapping turtles can live for over 150 years. Scientists know this because some of the turtles had musket balls in their stomachs.
271
A newborn Chinese water deer is so small, it can (almost) be held in the palm of a hand.
13