Humans really do rule the world. We took over fast and far, more than any other wild vertebrates. We inhabit nearly every ...

The natural and the social world shaped the evolution of each. Knowing whom to invite to dinner is as important as knowing how to cook.

Elephant seals show one of the most extreme size differences between males and females in mammals. Large males compete ...

The jackalope is mythical, but Wyoming was home to an actual prehistoric rodent with two large horns on its head. The Ceratogaulus is one of the ...

A new study shows cultural evolution helped humans expand across Earth far faster than genetic change alone could achieve.

Most people know only two things about the appendix: You don’t need it – and if it bursts, you need surgery fast. That basic ...

From whale songs to lion roars, animals have evolved to stretch their voices across distances so that friends—and sometimes foes—can hear them. Each sound is coded with messages like "Come here!" ...

Add Yahoo as a preferred source to see more of our stories on Google. Mammals descend trees in different ways, and primates stand apart. (CREDIT: Andrew Mercer / Wikimedia Commons / CC BY-SA 4.0) A ...

The study's findings indicate that these giant elephants were not stationary creatures. Strontium isotope analyses, which act as a "travel diary" preserved in tooth enamel, showed that some ...

Male zebra finch calls attract mates – and maybe, coincidentally, you? Raina Fan Logan S. James, The University of Texas at ...