If Earth's life was compressed into 1 year, then humans would have been around for only 2 seconds.
15
The offspring of two sets of identical twins are legally cousins but genetically siblings.
63
In a year, the average person walks four miles to make his or her bed.
56
Most people smile when they are frustrated, according to a study.
15
According to CNN national security correspondent David Ensore, as of 2002 bin Laden had married four women and fathered roughly 25 or 26 children.
54
Males sweat 40% more than females.
104