There is a sea snail that wears a suit of iron plated armor. It is the only known animal to use iron sulphide as skeletal material.
9
Sharks have been on the planet longer than trees.
14
Cows can sleep standing up, but they can only dream lying down.
745
Dolphins sometimes have fun by blowing bubbles and creating rings of air underwater, which they then swim through.
17
A cow produces around 200,000 glasses of milk in her lifetime.
373
Dogs have been man's pet for over 14,000 years.
224
Ants have tiny magnetic compasses in their antennae which help them navigate.
9
Tigers can see 6 times better at night than humans.
305