Only humans shed emotional tears.
331
There are times when you're walking that the pressure on your feet exceeds your body weight, and when you're running, it can be three or four times your weight.
62
Early American humans hunted car-size armadillos and used their shells for houses.
12
The human brain is very soft, having a consistency similar to soft gelatin or firm tofu.
13
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
Our eyes are always the same size from birth, but our nose and ears never stop growing.
266
If the human eye was a digital camera, it would have 576 megapixels.
25
Our Right Lungs takes more air than our left lung.
194