Parrotfish make themselves a kind of mucus 'sleeping bag' which masks their smell from predators and keeps parasites away.
4
Worker bees must visit around 4,000 flowers in order to make one tablespoon of honey.
5
Dire wolves actually existed, living up to 10,000 years ago before going extinct.
10
When you shave a guinea pig it looks like a little hippo.
19
There was a bear called Wojtek who was adopted by Polish soldiers during WW2. It carried ammunition, wrestled with soldiers, and drank beer.
40