Seeds of destruction?
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![Spencer Wells](https://img.apmcdn.org/ba617d67bc18dff06a6fc66803e7ee67900416f5/uncropped/2b0eb4-20100721-midmorning-spencer-wells.jpg)
Spencer Wells is a geneticist and explorer. His new book is titled "Pandora's Seed: The Unforseen Cost of Civilization."
David Evans
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