According to recent genetic and DNA research, some of the first Native Americas came from the north coast of China. According to a new genomics research, some of the initial arrivals occurred during the last ice age and shortly thereafter, in two different migrations. People from the north coast of China were among the earliest humans to arrive in the Americas, arriving in two independent migrations during and after the last ice age, according to a new genomics research.

Explorers might have arrived in the New World by a terrestrial route through an ice-free corridor, although this was most likely not the initial migration. The kelp highway theory is the polar opposite of the old 'ice-free corridor' route. The findings suggest that, in addition to the previously identified ancestral sources of Native Americans in Siberia, northern coastal China acted as a genetic reservoir that contributed to the gene pool.