Bats sleep 18-20 hours per day.
5
When cats are happy, they may squeeze their eyes shut.
10
Two dogs were among the Titanic survivors.
262
There was a bear called Wojtek who was adopted by Polish soldiers during WW2. It carried ammunition, wrestled with soldiers, and drank beer.
40
When a male honey bee climaxes during sex, his testicles explode and then he dies.
27
Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
Dire wolves actually existed, living up to 10,000 years ago before going extinct.
10