The reindeer is the only mammal that can see UV light.
17
A scorpion can hold its breath for up to 6 days.
19
Early American humans hunted car-size armadillos and used their shells for houses.
12
Ants have tiny magnetic compasses in their antennae which help them navigate.
9
Parrotfish make themselves a kind of mucus 'sleeping bag' which masks their smell from predators and keeps parasites away.
4
The octopus does not have a blind spot.
273