Charles Darwin’s theories of natural selection suggest that being mean, deceptive and selfish are the route to success in life. But, actually, science suggests that on a personal level, it may pay to be nice.
Left-handers aren't very common. In fact , they only represent about 10 percent of the human population. But a new study suggests that the reason lefties are in the minority isn't anything suspect—rather, it boils down to the fact that the human race cooperate more than they compete.
Think only jerks can catch a break in this cruel world? Nope. David Rand, a Harvard University researcher, studied the behavior of 800 individuals he recruited through Amazon's Mechanical Turk to prove it.