What Price Kindness? | The Scientist: If evolution is a game of survival of the fittest, how to explain the persistence of traits which reduce individuals’ success at passing on their genes? Behold the stinging bee, the toilsome ant, the nurturing sterile mole rat. Consider the social amoeba, Dictyostelium discoideum, in which altruistic stalk cells give their lives so their brothers can climb them to the tip of the cooperative spire and be carried away to better fortunes by a felicitous wind. Darwin was mesmerized by the apparent paradox of altruism in a nature “red in tooth and claw,” and proclaimed that absent a solution, his entire theory was suspect. Ever since, field biologists, mathematicians, geneticists, game theorists, psychologists, and of course philosophers have been trying to crack the mystery of the origins of kindness.
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