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Published online 18 May 2007 | Nature | doi:10.1038/news070514-20
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Drifters could explain sweet-potato travel
An unsteered ship may have delivered crop to Polynesia.
How did the South American sweet potato wind up in Polynesia? New research suggests that the crop could have simply floated there on a ship.
The origin of the sweet potato in the South Pacific has long been a mystery.
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