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
Cows as they are today never existed in the wild and were domesticated from aurochs some 10,500 years ago.
6
Some older/less efficient worker termites will develop 'backpacks' of toxic chemicals that explode when the termite is threatened. They are essentially used as suicide bombers when the colony is being attacked.
8
Parrot parents "name" their children with a signature call.
112
Lobsters have blue blood.
476
There's a lizard known as the 'Jesus Lizard' that can run across water.
11
The first known contraceptive was crocodile dung, used by Egyptians in 2000 B.C.
79
Vampire bats adopt orphans, and are one of the few mammals known to risk their own lives to share food with less fortunate roost-mates.
402