A major evolutionary theory says most genetic changes don’t really matter, but new evidence suggests that’s not true. Researchers found that helpful mutations happen surprisingly often. The twist is ...

When a feline gets threatened, it engages in a suite of behaviors that seem to have the purpose of facilitating its own survival. A cat will growl angrily. It will arch its back. And even the fur on ...

When it comes to relationships, men and women have been under somewhat different evolutionary pressures. As a consequence, women tend to connect love and sex more than men do.

A new systematic review published in Evolutionary Psychological Science suggests that the life stage of a mass murderer plays a significant role in shaping their motivations, stressors, and target ...