When a male gentoo penguin "falls in love" with a female penguin, he searches the entire beach to find the perfect pebble to present to her.
25
The oldest creature ever found was Ming the clam at an admirable 507 years old.
16
The male seahorse carries babies and 'gives birth' to them instead of the female.
7
Female kangaroos have three vaginas.
2
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