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September 3, 2010
September 2, 2010 Seven-year-old children only need to interact with a person once to learn who to trust and seek information from. 
August 31, 2010 Girls are hitting puberty earlier and earlier. One recent study found that more than 10 percent of American girls have some breast development by age 7. This news has upset many people, but it may make evolutionary sense. 
August 31, 2010 Over the past 10 years, a small group of academics have begun to look at religion in the same way their collegues look at animals: they've started to look at God and the supernatural through the lens of evolution. 
August 30, 2010 Mothers are said to hold a special lifelong place in their children's hearts, but it also appears they have a unique significance in their brains too. 
August 26, 2010 Researchers found a woman having an "hourglass" shaped figure was more important for a man than her breast size or facial features. 
August 25, 2010 General brain circuits process moral decisions as readily as they do everyday choices. 
August 24, 2010 Archaeologist and anthropologist Timothy Taylor explains how a long-vanished artefact explains human evolution and led to "survival of the weakest." 
August 24, 2010 Many animals yelp or cry out when they're in pain. But as far as scientists can tell, we humans seem to be the only species that shed tears for emotional reasons. 
August 20, 2010 Oxytocin plays an important role in birth and maternal behavior, but until now, research had never addressed the involvement of oxytocin in the transition to fatherhood. 
August 19, 2010 When a woman is ovulating, her behavior changes in a startling number of ways from the way she walks, talks and dresses to the men she flirts with. 
August 19, 2010 We've evolved ways to come back from the brink of deathand doctors' efforts to help may just be getting in the way. 
August 18, 2010 Gene variants associated with for type-1 diabetes and rheumatoid arthritis may confer previously unknown benefits. As a result, the human race may have been evolving to be more susceptible to these diseases. 
August 18, 2010 New research suggests that determining property ownership may be an intuitive processone more fundamental than society’s laws and regulations. 
August 17, 2010 The most beautiful thing about humans is that they are both ever-changing and sometimes prone to error. Yet humans are still extremely flexible and adaptable, managing the transition from one context to another almost seamlessly. 
August 16, 2010 These words you are reading are really just a collection of arbitrary symbols. Yet, after some decoding by your brain, these symbols convey meaning. That's because humans have evolved a brain with an extraordinary knack for language. 
August 12, 2010 Most of us do it every day without even thinking about it, yet talking is a uniquely human ability. 
August 12, 2010 Men who reach sexual maturity in an environment with few available women are at risk of dying sooner than their luckier confrères. 
August 11, 2010 Humans aren't the only ones that make irrational choices; new research has found single-celled brain-less slime moulds do it too. 
August 10, 2010 New research reveals that reminders of wealth impair our capacity to savor life's little pleasures. 
August 9, 2010 From one perspective, the human brain is a masterpiece. From another, it's 3 pounds of inefficient jelly. Both views are accurate. 
August 6, 2010 For generations, the Avidians have been cloning themselves quietly in a box. They're not perfect, but most of their mutations go unnoticed. Then something remarkable happens. 
August 5, 2010 Ovulating women unconsciously dress to impressdoing so not to impress men, but to outdo rival women during the handful of days each month when they are ovulating. 
August 4, 2010 By examining DNA, we can plot the bumpy ride followed by humanity to today's astonishingly populous position. 
August 3, 2010 Of all the things that make human beings unique, one that gets overlookedliterallyis the shoulder. 
August 3, 2010 A large part of human milk cannot be digested by babies and seems to have a purpose quite different from infant nutritionthat of influencing the composition of the bacteria in the infant's gut. 
August 2, 2010 What could be as alluring as a lady in red? Perhaps a gentleman in red. 
August 2, 2010 How and why we went from small-brained, raw-food eating primates to carnivorous, large-brained cooks. 
August 2, 2010 The sway that exaggerated characteristics hold over us is a special kind of illusion—and a powerful one. They help to drive the most powerful force that shapes life on earth: evolution. 
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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