2% of Europeans lack the genes for smelly armpits.
6
Most people smile when they are frustrated, according to a study.
15
The offspring of two sets of identical twins are legally cousins but genetically siblings.
63
Men laugh longer, louder, and more often than women.
61
Someone on Earth reports seeing a UFO every three minutes.
180
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
Women mature much faster than men.
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