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
Penguins have a gland above their eye that turns saltwater into freshwater.
12
There's a lizard known as the 'Jesus Lizard' that can run across water.
11
Female kangaroos have three vaginas.
2
Allegedly, Chrysippus, the Greek philosopher, died of laughter after getting his donkey drunk and watching it try to eat figs.
47
Lobsters have blue blood.
476