ARCHEOLOGY: The Oldest Known Human Remains in the Americas Have Been Found in a Mexican Cave.

How he arrived at the location remains a great mystery given the timing and the fact that Mexico is well over 4,000 miles away from the Bering land crossing.

“Scenarios of travel by boat along the Pacific shoreline, the ‘Kelp Highway,’ must be taken seriously, but alternative migration routes by boat from Europe along the Greenland ice margin or via Antarctica are also possible, though highly speculative,” lead author Wolfgang Stinnesbeck of the Institute of Geosciences at Heidelberg University said.

“If travel by boat is correct,” he added, “then likely camp sites are now set underwater due to the early Holocene rise of sea level.”

We’re likely going to find that human migration to the Americas was much more varied than is widely believed — or in some cases, accepted.