A long-disputed rule in biology says bigger is better, but a new computer model illuminates why that’s not necessarily true. By Lauren Leffer Published Jan 18, 2024 11:45 AM EST Get the Popular ...

My colleague and I have published a new study of cactus flowers which may help explain the conundrum. For more than a century ...

Scientists find evolutionary explanation for 'irrational' dread risk behavior by Andrew Merrington, University of Exeter edited by Lisa Lock, reviewed by Robert Egan Editors' notes ...

A consensus has emerged in recent years that psychotherapies—in particular, cognitive behavioral therapy (CBT)—rate comparably to medications such as Prozac and Lexapro as treatments for depression.

“Evolution makes its appeal to reason, but its acceptance does not mean the abasement, let alone the denial, of emotion, faith, and religion.” When there is talk of evolution among laymen it is ...

In a red-in-tooth-and-claw natural world, where self-interest seems to be a form of fitness, how does altruistic behavior arise? It's a fascinating question, and one that has been particularly ...

There are endless arguments for why people drink. It makes us feel good. It's a social lubricant. It's tasty. But those reasons do not address the ultimate explanation for why our brains evolved to ...

One of the big unsolved mysteries in evolutionary theory is why creatures are altruistic. Selflessness doesn’t seem to be one of those qualities that ensure survival of a bloodline, since, by ...

Randolph Nesse, MD, is a research professor of life sciences at Arizona State University. For more about evolutionary medicine, see the International Society for Evolution, Medicine and Public Health.

This blog entry is about one of my many pet peeves. Essentially, there is much literature examining correlates of sex differences in a specific behavior that claim to provide a test of one ...

The evolution of the so-called Dread Risk response has been explained by new scientific research. People often respond to low-probability, high-consequence events ...