Early American humans hunted car-size armadillos and used their shells for houses.
12
Our brains have a negativity bias and will remember bad memories more than good ones.
15
In ancient Egypt, priests plucked EVERY hair from their bodies, including their eyebrows and eyelashes.
130
Due to the angle at which the optic nerve enters the brain, staring at a blue surface during sex greatly increases the intensity of orgasms.
252
The human brain doesn't stop developing until about 25 years old.
102
Only 12,000 years ago there was a species closely related to modern humans called Homo floresiensis that had been living on an Indonesian Island. They used fire and rather advanced tools, yet were only about 3 feet tall and weighed around 25kg.
15
Mushrooms are more closely related to humans than they are to plants.
47
Tigers can see 6 times better at night than humans.
305