Researchers at Edinburgh University’s department of psychology report that there is a biological mechanism underpinning the loyalty that a person feels to their social group. The study investigated whether people are hard-wired to show bias to people of their own religion, ethnicity and race, or whether loyalties depend more on context. This work adds to an extensive body of previous research... 

How well a person performs in a coalition is partly hereditary, according to a recent study. British researchers found that how successfully an individual operates in a group is as much down to having the right genetic make-up as it is to having common cultural ties with fellow group members. After assessing nearly 1000 pairs of adult twins, researchers at the University of Edinburgh found that strong...