Right-handed humans ruled 500,000 years ago
April 22, 2011
(MCT)Right-handers not only far outnumber left-handers today, but did 500,000 years ago as well, reported LiveScience.com and Science Daily.Today, the ratio of right-handers to left-handers is 9:1. But according to the research of American scientists in UK scientific journal “Laterality,” 93.1 percent of humankind was right-handed 500,000 years ago.A researcher at the University of Kansas analyzed