It’s stressful at the top, at least for male baboons, according to a new study that finds that alpha males — those at the pinnacle of the social hierarchy — are significantly more stressed out than a ...

A few things come to mind when we imagine the alpha male type. They're the ones calling the shots, who get all the girls. But there's a downside to being a strong and powerful alpha stud—at least if ...

Chimpanzees and bonobos are often thought to reflect two different sides of human nature -- the conflict-ready chimpanzee versus the peaceful bonobo -- but a new study shows that, within their own ...