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
Penguins have a gland above their eye that turns saltwater into freshwater.
12
When a drone bee mates with a queen, its ejaculation is so powerful that it can even be heard by the human ear.
5
Cat families usually play best in even numbers. Cats and kittens should be acquired in pairs whenever possible!
156
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