How early humans first got to the Americas has long been debated by scientists.
The conventional story goes that the earliest settlers came via Siberia, crossing the now-defunct Bering land bridge on foot and trekking through Canada.
However, some scientists believe the first Americans may have taken a coastal route along Alaska’s Pacific border to enter the continent.
Now, a new study has come up with some of the first evidence to support this theory by looking at boulders and bedrock in the region.
Researchers say they have ‘direct evidence’ that part of a coastal migration route was ice-free and accessible to humans 17,000 years ago.
The area was also home to food sources such as ancient ringed seal that could support human life at the time that early settlers may have been passing through, the study found.
Researchers aren’t saying humans definitely travelled along this coastal route, but claim conditions would have been right for them to do so 17,000 years ago.
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