Parrotfish make themselves a kind of mucus 'sleeping bag' which masks their smell from predators and keeps parasites away.
4
Lurch, a Watusi bull, had the largest horns in the world.
32
Early American humans hunted car-size armadillos and used their shells for houses.
12
The first known contraceptive was crocodile dung, used by Egyptians in 2000 B.C.
79
Ants have tiny magnetic compasses in their antennae which help them navigate.
9
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
In 1955, the citizens of São Paulo were so upset with their government that they elected a rhinoceros named Cacareco (meaning rubbish) to the city council in protest, with over 100,000 votes.
18