There was a bear called Wojtek who was adopted by Polish soldiers during WW2. It carried ammunition, wrestled with soldiers, and drank beer.
40
Parrotfish make themselves a kind of mucus 'sleeping bag' which masks their smell from predators and keeps parasites away.
4
When a male honey bee climaxes during sex, his testicles explode and then he dies.
27
The sound of a tiger's roar can travel a distance of up to 2 miles (~3 km).
255
The two oldest cats on record lived to 38 and 34 years old, both were owned by the same owner and lived off a diet of bacon, eggs, broccoli and coffee.
12
An alligator can go through 2,000 to 3,000 teeth in a lifetime.
268