チュクチ
From Central Asia, a small group migrated towards the northeast, following reindeer. These were the ancestors of Siberian groups such as the Chukchi people, a few of whom still live a nomadic lifestyle today. An even smaller group, estimated at no more than 20, crossed what is now the Bering Sea approximately 15,000 years ago during the last glacial period, and migrated into North America. They are the ancestors of Native Americans, and 800 years later, they had reached as far as South America.