According to the article, "Study Links Brazilians to Polynesians," the land bridge across the Bering Straits theory for human population of the Americas is being challenged with new scientific evidence.
An early people, the Botocudo, are found to share DNA with Polynesian people.
There are many possible ways to interpret the data, but one way would be to mention that perhaps we don't have all the information yet.
Maybe there was not just one way to get to America in ancient times, perhaps there were ancient established oceanic trade routes.
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