Gorillas can catch human colds and other illnesses.
205
A human being loses an average of 40 to 100 strands of hair a day.
133
Enamel is hardest substance in the human body.
61
A man's beard grows fastest when he anticipates sex.
239
Early American humans hunted car-size armadillos and used their shells for houses.
12
Tigers can see 6 times better at night than humans.
305
When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
1k
Our brains have a negativity bias and will remember bad memories more than good ones.
15