➀ Inland route
New theory of inland hunter’s “marinarisation” has come out to Kelp Highway in Beringia as coastal migration hypothesis has become popular.
② Coastal route
AB ：It took long duration for adapting to quite different from near equator life in higher latitude, such as clothing and dwelling.
BC： Long and cold route, but it was not so slow migration in spite of moving very cold zone.
It might be preparation for life already in Japan, rich diet of marine resources, rather mild climate along coast of north Pacific.
CD ：It was rather fast because of better climate, but not ”Express” , as previously thought.
-RGaPJ