One in 500 humans has one blue eye and one brown eye.
145
Men laugh longer, louder, and more often than women.
61
Girls have more tastebuds than boys.
124
One million Americans, about 3,000 each day, take up smoking each year. Most of them are children.
-86
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
Yu Youzhen, a Chinese millionaire, works as a street sweeper for the sanitation department to set an example for her children.
11
A couple had their wedding rings engraved with a waveform of their own voices saying "I do."
10
Men are more attracted to women whose bone structure is similar to their own mothers. It's called "sexual imprinting".
18