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 first known contraceptive was crocodile dung, used by Egyptians in 2000 B.C.
79
Dire wolves actually existed, living up to 10,000 years ago before going extinct.
10
A dairy cow can produce more milk when listening to music.
446
A cow produces around 200,000 glasses of milk in her lifetime.
373