A person can live without food for about a month, but only about a week without water.
156
Gorillas can catch human colds and other illnesses.
205
We share 70% of our DNA with a slug.
218
Early American humans hunted car-size armadillos and used their shells for houses.
12
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
Our brains have a negativity bias and will remember bad memories more than good ones.
15
Yawns are more contagious among people with closer relationships.
163
