The offspring of two sets of identical twins are legally cousins but genetically siblings.
63
Intelligent people have more zinc and copper in their hair.
233
The average person walks the equivalent of twice around the world in a lifetime
69
In the presence of attractive women, men find running easier, take more risks, donate more money, consume more calories, and talk more.
28
Americans did not commonly use forks until after the Civil War.
82
If Earth's life was compressed into 1 year, then humans would have been around for only 2 seconds.
15
Boys who have unusual first names are more likely to have mental problems than boys with conventional names. Girls don't seem to have this problem.
131