Parrotfish make themselves a kind of mucus 'sleeping bag' which masks their smell from predators and keeps parasites away.
4
Ants have tiny magnetic compasses in their antennae which help them navigate.
9
A dairy cow can produce more milk when listening to music.
446
Cows as they are today never existed in the wild and were domesticated from aurochs some 10,500 years ago.
6
Sloths take two weeks to digest their food.
243
When a drone bee mates with a queen, its ejaculation is so powerful that it can even be heard by the human ear.
5