Many animals, including humans, avoid mating with close relatives. Yet it’s not always clear how they distinguish kin from nonrelatives. A study published last month (February 24) in Current Biology ...

Drawing on 48 years of data on the family trees and mate choices of 1,624 wild baboons in Kenya, a new study finds that baboons generally steer clear of mates that are half-siblings or closer. But ...

There's something most species -- from baboons to humans to horses -- have in common: When they suffer serious adversity early in life, they're more likely to experience hardship later on in life.