Only 3% of bird species have penises.
0
Lurch, a Watusi bull, had the largest horns in the world.
32
A scorpion can hold its breath for up to 6 days.
19
A newborn Chinese water deer is so small, it can (almost) be held in the palm of a hand.
13
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