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July 3, 2009
June 17, 2009
Human intelligence may not be so human after all. 
June 15, 2009
The issue isn't just explaining why almost all plants and animals engage in sex. It is also explaining why the life forms that ruled the planet for billions of years and remain by far the most abundant—the bacteria—manage fine without it.
June 12, 2009
Men prefer averagely shaped women, according to a study that compared the body shapes of ordinary women, Playboy centrefolds and professional escorts.
June 11, 2009
It is a little-known fact that a life lived without enemies would be an extraordinarily dull affair.
June 10, 2009
Children who look and smell like their father receive more of their support, compared to kids who resemble dad less.
June 10, 2009
In places where young women outnumber young men, research shows the hemlines rise but the marriage rates don't because the young men feel less pressure to settle down as more women compete for their affections.
June 10, 2009
Are the cognitively superior brains of humans, in part, responsible for our higher rates of cancer?
June 8, 2009
Boys who carry a particular variation of the gene Monoamine oxidase A (MAOA), sometimes called the "warrior gene," are more likely not only to join gangs but also to be among the most violent members and to use weapons.
June 5, 2009
Increasing population density, rather than boosts in brain-power, appears to have catalysed the emergence of modern human culture.
June 5, 2009
War, what is it good for? A lot, it could turn out. Lethal warfare drove the evolution of altruistic behaviour among ancient humans, claims a new study based on archaeological records and mathematical simulations.
June 5, 2009
If you want to wait by the phone for your next college-aged daughter's call home, you should mark the days of her menstrual cycle on your calendar.
June 4, 2009
The first hoots of laughter from an ancient ancestor of humans rippled across the land at least 10 million years ago, according to a study of giggling primates.
June 3, 2009
Feeling emotionally close to a friend increases levels of the hormone progesterone, helping to boost well-being and reduce anxiety and stress.
June 3, 2009
Skinny men have new reason to celebrate. Well, kind of. Beefcakes may be able to attract women by rippling their muscles, but the downside of all that brawn is a poor immune system and an increased appetite.
June 2, 2009
As if splitting a pair of pants, telling a transparent lie or mispronouncing the word “epitome” weren’t humiliation enough, nature has provided humans, especially the fair-skinned kind, with a built-in scarlet letter.
May 29, 2009
A woman's partner status influenced her interest in the opposite sex.
May 28, 2009
A model that examines the behaviour of parasites infecting their hosts renders the evolutionary paradigm of group selection unnecessary.
May 28, 2009
What is the difference between Jesus Christ and Superman? The content of religions and popular tales is often similar, but only religions have martyrs.
May 27, 2009
Our brain is wired to identify gender based on facial cues and coloring, according to a new study.
May 26, 2009
The bond of true love may be forged in the genes as well as in the mind.
May 21, 2009
Monkeys playing a game similar to "Let's Make A Deal" have revealed that their brains register missed opportunities and learn from their mistakes.
May 20, 2009
Behavioral ecologists working in Bolivia have found that wild spider monkeys control their diets in a similar way to humans, contrary to what has been thought up to now.
May 19, 2009
Souls, spirits, ghosts, gods, demons, angels, aliens, intelligent designers, government conspirators, and all manner of invisible agents with power and intention are believed to haunt our world and control our lives. Why?
May 19, 2009
If avoidance and retreat have to do with danger, is it possible that backward motion might actually recruit more brain power than forward motion?
May 18, 2009
Celebrities and news-makers get grilled in exactly five minutes in a series for the BBC News website. This week, evolutionary biologist, atheist and author Richard Dawkins talks about death, being good and the point of life.
May 18, 2009
Any child confronting an outraged parent demanding to know "What were you thinking?" now has a new response: "Scientists have discovered that my brain is organized differently than yours."
May 18, 2009
Why do we inflict pain for no gain? On the face of it, it is rather a perverse way of going about things. Does spitefulness stem from an affronted sense of fairness? Or something altogether darker?
May 15, 2009
Through sophisticated statistical analyses and advanced computer simulations, researchers are learning more about the genomic patterns of human population structure around the world.
May 14, 2009
Most mammals are solitary. Primates, on the other hand, are an order full of social animals. But sociality comes with a cost—we make great hosts for viruses. And our primate brand of closeness makes us particularly vulnerable.
May 13, 2009
Men really do have an excuse for supposedly being wimpy about coughs and colds—their immune systems are not as strong as women's.
May 13, 2009
What is cuteness for? No clear biological link has been found between cuteness and womanhood and mothering—until now.
May 12, 2009
Aggressive behavior of men in some South American groups has been considered the means for obtaining more wives and more children, but anthropologists working in Ecuador show that sometimes the macho guy does not do better.
May 11, 2009
It was one of the thorniest questions of the 20th Century and it remains a conundrum today. Are all "ordinary" people potentially violent?
January 31, 2003
The debut of The Bio-Rational Forum was held on March 1-2, 2003, at the Grand Pacific Palisades Resort Hotel in Carlsbad, California. The Forum provided a comprehensive introduction to the evolution of the brain, and the five primal instincts that influence human behavior.
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