10 Things You Probably Didn't Know About Love and Sex

Regardless of your stance on Valentine's Day, there's no way to avoid being bombarded with romantic imagery. So you might as well take this as an opportunity to learn something new. With that in mind, here are ten things you probably didn't know about sex, love and lust. » 2/12/14 10:30am 2/12/14 10:30am

The rise of the evolutionary psychology douchebag

They believe that certain groups of people are inherently smarter than others. They write books about how rape is a natural part of human evolution. And now, with another scandal rocking the world of evolutionary psychology, we can officially welcome a new breed of mad scientist into the spotlight: evopsych douchebags. » 7/12/13 1:40pm 7/12/13 1:40pm

Why is this pioneering researcher fighting to have his work retracted?

When Rutgers evolutionary biologist Robert Trivers began to suspect that his co-author, William Brown, had faked the data on a widely circulated study, he was placed in the unenviable position of bringing the fraud to light. It has not been easy. » 5/07/13 11:20am 5/07/13 11:20am

Bizarre study suggests men care more about their sisters' children than…

Are men hard-wired to put the needs of their nieces and nephews over the needs of their own children? A University of Utah anthropologist conducted a mathematical analysis that could explain why some men go out of the way to care for the offspring of a sister. » 11/30/12 12:17pm 11/30/12 12:17pm

This paper on men falling asleep after sex is Exhibit A for weak…

A new study purports to use evolutionary psychology to explain why men fall asleep after sex, and what it actually means. The study is being widely reported as proving that men only fall asleep after sex to avoid giving affection or commitment to their female partners. Or maybe it proves that men who fall asleep after… » 1/23/12 4:09pm 1/23/12 4:09pm

Want to fight prejudice? Just wash your hands.

Evolutionary psychology has a lot of ideas that are, well, pretty nutty. The latest theory argues that social prejudice can be fought by being more careful about the spread of disease. It's definitely nutty...but it might also do some good. » 12/04/11 11:30am 12/04/11 11:30am

Why a little self-delusion can be a very good thing

In general, the more aware of reality you are, the more likely you are to survive. But sometimes lying to yourself has its advantages. Possessing an over-inflated belief in yourself can help you perform better than accurately knowing your abilities. » 9/14/11 3:43pm 9/14/11 3:43pm

Why you shouldn't challenge a breast-feeding mom to play Call of Duty

When you happen upon a couple of bear cubs in the woods, what's the first thing that should come to mind? If you answered "I wanna squeeze 'em," you're wrong. It should be "where's the mom?" And with good reason. Numerous non-human mammals are known to exhibit heightened levels of aggression in defense of their young. » 8/30/11 5:20pm 8/30/11 5:20pm

How evolutionary psychology proved some old folklore...and why both are…

There's an old bit of folklore that children tend to more closely resemble their fathers than their mothers. There's a possible evolutionary explanation for this, and one study seemed to confirm it all. Here's why it's all bogus. » 6/19/11 2:45pm 6/19/11 2:45pm

People under surveillance are more likely to condemn "bad behavior" in…

Social scientists have long known that people manage their reputations by modifying their behavior in public. But new research out of Australia now shows that this tendency to "act appropriately" extends beyond our actions and into our moral judgments. » 6/17/11 2:53pm 6/17/11 2:53pm

Did early humans start standing upright so they could beat each other…

There are lots of possible explanations for why humans became bipedal, including changing ecosystems and food resources. But what if it was just so it was easier for early humans to beat the crap out of each other? » 5/18/11 3:30pm 5/18/11 3:30pm

Saying "I love you" is a matter of evolutionary economics

Men and women say "I love you" at different points in their relationships, and they say it for very different reasons. It turns out that even the timing of "I love you" is all about following our ancient evolutionary drives. » 4/25/11 3:33pm 4/25/11 3:33pm

The evolutionary basis for morality might be completely disgusting

Most humans are grossed out by things like oozing sores or rotten meat, and there might well be an evolutionary basis for staying away from these harmful things. But it might go deeper: that disgust might have created our morality. » 1/03/11 2:00pm 1/03/11 2:00pm

Chimpanzees play with sticks as though they're dolls

In many cultures, girls play with dolls more often than boys do. Now chimps have been observed treating sticks like dolls. Is there a gender imbalance in the way chimps play with their dolls, too? » 12/20/10 10:22am 12/20/10 10:22am

Did societies evolve to be corrupt?

Corruption is as old as human history. For as long as people have organized themselves into groups with powerful leaders, those leaders have sometimes abused their power. But evolutionary biologists say corruption might actually be holding societies together. » 12/17/10 11:36am 12/17/10 11:36am

Do women avoid talking to their fathers because of evolution?

Even for evolutionary psychology, this latest finding is really bizarre. Cell phone bills suggest women avoid talking to their fathers during periods of high fertility, which might be a relic of an evolutionary imperative to avoid mating with close relatives. » 11/29/10 5:00pm 11/29/10 5:00pm

Does a primitive part of our brains make us less interested in mates…

Female members of one fish species show strong responses in a primitive part of her brain when she watches her chosen male lose in a fight. Humans might also possess this overwhelming evolutionary imperative to find the toughest, most combat-ready mates. » 11/26/10 3:54pm 11/26/10 3:54pm

The sight of meat lowers human aggression

From an evolutionary standpoint, humans should become more aggressive when they see meat. But research indicates the exact opposite is true. » 11/09/10 10:28am 11/09/10 10:28am

Men and women act differently after sex because of evolution

The different behaviors of males and females in the bedroom has been ably investigated by decades of stand-up comics, but only now are scientists entering the fray to examine the deeper motivations of post-coital activities. Evolutionary psychology to the rescue! » 9/12/10 1:00pm 9/12/10 1:00pm

Evolutionary psychologist under investigation for shoddy research at…

Harvard's media-friendly evolutionary psychologist Marc Hauser, famous for his 2006 book Moral Minds, is under investigation for misrepresenting research on morality in primates. Students asked Harvard officials to raid Hauser's lab three years ago; they didn't like what they found. » 8/14/10 3:00pm 8/14/10 3:00pm