Babies crawl an average of 200m a day.
212
It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
11
A man's beard grows fastest when he anticipates sex.
239
On average a woman has 4 sexual partners in her lifetime.
-143
Fingers prune underwater not because of them absorbing the water or washing away the oil, but because of an evolutionary trait caused by the brain to enhance the grip of your fingers underwater.
24
Early American humans hunted car-size armadillos and used their shells for houses.
12
The world's shortest man measures only 21.5 inches.
73
Our brains have a negativity bias and will remember bad memories more than good ones.
15