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
When dragonflies mate, their tails form a love heart.
22
The ancestor of all domestic cats is the African Wild Cat which still exists today.
12
A dork is a whale's penis.
327