Now they've had to add 1000 years to it and it totally blows their entire theory about the Bering Ice Bridge bringing the first humans to North America.
I think it's probably a good bet that quite a few of them figured out that boats float a long time before the Bering Sea froze over.
The migrations on foot, whenever they occurred, crosse the Bering
land bridge. Sea levels were lower during the last ice age and Alaska and Siberia were connected by an isthmus that was well above sea level.
