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
When a drone bee mates with a queen, its ejaculation is so powerful that it can even be heard by the human ear.
5
A newborn Chinese water deer is so small, it can (almost) be held in the palm of a hand.
13
Cats are one of the only animals to domesticate themselves and approach humans on their own terms.
20
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
The male seahorse carries babies and 'gives birth' to them instead of the female.
7