The sigma male provides an alternative to the alpha male and beta male dichotomy ... you might not have met a sigma male in your day-to-day, so here’s what the expert had to say.

In the savannas of Kenya, where the sun beats down on the golden grasses and acacia trees, male baboons live in a world of constant competition. To rise to the top of the social ladder is to gain ...

Bed-rotting: Staying in bed all day. You may know it as “lazing around.” See also: "Hurkle-durkle." Beta male: A beta male, or just "beta," is a weaker, subservient male. (See "alpha male" and ...

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 ...

There's a downside to being a powerful alpha male -- at least if you're a baboon. Studies show that despite their high rank, the No. 1 males in baboon society are also some of the most stressed ...