Something to chew on IN 2009 Richard Wrangham, an anthropologist at Harvard, published an intriguing thesis. He was trying to answer a question that had long puzzled workers in his field: how could the evolution of an organ as energetically expensive to sustain as the human brain have happened? Before Dr Wrangham's work the conventional answer was: "meat-eating". Archaeological evidence such as a lack of tool marks on animal bones suggests humanity's ancestors, the Australopithecines, were large...
Something to chew on IN 2009 Richard Wrangham, an anthropologist at Harvard, published an intriguing thesis. He was trying to answer a question that had long puzzled workers in his field: how could the evolution of an organ as energetically expensive to sustain as the human brain have happened? Before Dr Wrangham's work the conventional answer was: "meat-eating". Archaeological evidence such as a lack of tool marks on animal bones suggests humanity's ancestors, the Australopithecines, were large...
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