'We have to rethink our ideas about the migration of humans to the Americas.” New research suggests humans lived in South America at the same time as now extinct giant sloths, bolstering evidence that people arrived in the Americas earlier than thought.
New research suggests humans lived in South America at the same time as now extinct giant sloths, bolstering evidence that people arrived in the Americas earlier than once thought.
Dating of the ornaments and sediment at the Brazil site where they were found point to an age of 25,000 to 27,000 years ago, the researchers reported. That's several thousand years before some earlier theories had suggested the first people arrived in the Americas, after migrating out from Africa and then Eurasia.
In the past decade, other research has challenged the conventional wisdom that people didn’t reach the Americas until a few thousand years before rising sea levels covered the Bering land bridge between Russia and Alaska, perhaps around 15,000 years ago.
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