One reason that kittens sleep so much is because a growth hormone is released only during sleep.
212
There was a bear called Wojtek who was adopted by Polish soldiers during WW2. It carried ammunition, wrestled with soldiers, and drank beer.
40
Gorillas can catch human colds and other illnesses.
205
Christmas Island has bridges for crabs to stop them getting run over during the mass migration.
9
The oldest recorded elephant lived for 82 years.
213