Women rate men more attractive if other women are looking and smiling at him.
17
Blonde hair is not exclusive to Europeans. Melanesians of the south Pacific evolved a different gene for blonde hair.
7
The first man to swim the length of Great Britain grew a beard to stop jellyfish stinging his face.
16
If Earth's life was compressed into 1 year, then humans would have been around for only 2 seconds.
15
On average, a human being will have sex more than 3,000 times and spend two weeks kissing in their lifetime.
161
Children's sense of smell is better than adults'.
860
In one day an average person will take about 18,000 steps.
55
