the mathematics of cooperation
Using mathematics to tackle some of biology's biggest questions, Martin Nowak  has concluded that an ability to cooperate is the secret of humanity's success. He talks to Michael Marshall   about drawing fire from Richard Dawkins, the perils of punishment, and  devising the mathematical equivalent of the rules of religion: http://www.newscientist.com/article/mg20928045.200-the-mathematics-of-being-nice.html
 
