There's a breed of cat called Munchkin and they have tiny legs.
13
Ants have tiny magnetic compasses in their antennae which help them navigate.
9
A woodpecker can peck twenty times a second.
28
Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
A scorpion can hold its breath for up to 6 days.
19
Some ribbon worms will eat themselves if they can't find any food.
-33
A cat's jaws cannot move sideways.
194