Sports Stats Show Why Lefties are Rare
Cooperation favors same-handedness—for sharing the same tools, for example. Left-handed people are relatively rare because of the balance between cooperation and competition in.
Science and Medicine
Right-Handedness Prevailed 500,000 Years Ago
New research shows that distinctive markings on fossilized teeth correlate to the right or left-handedness of individual prehistoric humans. (Credit: Image courtesy of.
- April 20, 2011
- 2 minutes read
