From popular culture to the dark corners of the internet, there are many claims about “fundamental” differences between people on the basis of gender, racial or ethnic groups, sexuality, or other ...

While many studies have looked at possible evolutionary links between men's strength and sexual behavior, a Washington State University study included data on women with a surprising result. Women, as ...

Most of us do it, be it romantic, familial, friendly or formal, but kissing among humans and where and how it originated is still hotly debated among historians and anthropologists. Now a new theory ...

As early humans spread from lush African forests into grasslands, their need for ready sources of energy led them to develop a taste for grassy plants, especially grains and the starchy plant tissue ...

Prologue -- The structure of this book -- Six paradigms -- 1. Introduction -- Some premises -- Some history -- Evolution and modification of behavior -- Evolution of ontogeny in the human animal -- ...

A new study posits that same-sex sexual behavior developed to help primates in complex social groups ease tension, reduce ...

Our behavior seems to be built by evolution, and it's sometimes paradoxical. To borrow from the hard sciences, our behavior exhibits complementarity. We are largely felicitous to our family and ...

Cara Wall-Scheffler does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations ...