Add Yahoo as a preferred source to see more of our stories on Google. In 2014, ISIS racked up a series of stunning successes as it pushed through Iraq and Syria, gaining momentum and new recruits with ...

Add Yahoo as a preferred source to see more of our stories on Google. This creates a potentially dangerous situation for the United States. Acceptance of electoral defeat, something political ...

A new article provides a narrative review of the relevant similarities and distinctions between nonhumans and humans to assess the causes and consequences of winner and loser effects in humans.

Research has shown that in many animals, the winners of a fight are more likely to win subsequent contests, while the losers tend to lose their following fights. In experiments where male stickleback ...