Eating Shaped Us

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** FOOD FOR THOUGHT: DIET AND HUMAN EVOLUTION

We humans are strange primates. We walk on two legs, carry around

enormous brains and have colonized every corner of the globe.

Anthropologists and biologists have long sought to understand how our

lineage came to differ so profoundly from the primate norm in these

ways, and over the years all manner of hypotheses aimed at explaining

each of these oddities have been put forth. But a growing body of

evidence indicates that these miscellaneous quirks of humanity in fact

have a common thread: they are largely the result of natural selection

acting to maximize dietary quality and foraging efficiency. Changes in

food availability over time, it seems, strongly influenced our hominid

ancestors. Thus, in an evolutionary sense, we are very much what

we ate.

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