One in 500 humans has one blue eye and one brown eye.
145
Blonde hair is not exclusive to Europeans. Melanesians of the south Pacific evolved a different gene for blonde hair.
7
Children grow faster in the springtime than any other season during the year.
108
In Haiti, only 1 out of every 200 people own a car.
23
People with blue eyes are better able to see in the dark.
153
Awarding people money for doing well in IQ tests causes them to score better, $10 increased people's score by an average of more than 20 IQ points. IQ tests don’t just measure intelligence - they also measure effort.
9
Yu Youzhen, a Chinese millionaire, works as a street sweeper for the sanitation department to set an example for her children.
11