n96.
Richard Wrangham (2009), Catching Fire: How Cooking Made Us Human. For a model of evolution from hunter-gatherer to agriculturalist, see Ester Boserup, “Environment, Population and Technology in Primitive Societies”, in Donald Worster, ed. (1988), The Ends of the Earth, pp 23–38; for an absorbing extended narrative of this, see Jared Diamond (1997), Guns, Germs and Steel, chapters 4–10.