Some of the first humans in the Americas came from China, study finds

[wnylib]

2. Interesting details, but we already knew

from mtDNA haplotypes A, B, C, and D that Native Americans share haplotypes with the people of China. The mtDNA haplotype X among Native Americans is from Siberia and accounts for a far smaller group of Native Americans.

Before this article, I had read only one source about a genetic link between the Ainu and Native Americans, but I can see a resemblance between the two groups.

ON EDIT: Some physical features that are common among Native Americans are absent among the Chinese and Japanese, so apparently there were mutations in Asia or in the Americas, or in both places, since the first people migrated to North and South America.