It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
11
Blonde hair is not exclusive to Europeans. Melanesians of the south Pacific evolved a different gene for blonde hair.
7
Every three seconds, a new baby is born.
122
The average single man is one inch shorter than the average married man.
88
76% of Americans celebrate New Year's Eve in groups of less than 20.
55
People who are more likeable and attractive are generally perceived as more intelligent. This is called the “Halo Effect.”
13
According to a study, women ages 22 to 30 with no children and no spouse earned a higher median income than comparable men in 39 of the 50 largest U.S. cities in 2008.
9
Muhammad is the most common name in the world.
96