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Old 09-14-2017, 05:45 AM
Mrs. Robinson Mrs. Robinson is offline
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Default Did You Know? The Percentage of Left-Handed People
Science has discovered a great deal about why being a lefty shows up in only 10 percent of the world's population.

A study found that lefties are probably left-handed because of a balance between competition and cooperation in human evolution. Cooperation favors same-handedness (sharing tools), and competition favors the unusual (southpaws have advantage in a fight.) The 90-10 ratio of right-handed to left-handed has remained stable for over 5,000 years.

Source: LiveScience.com
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