As the last continents to be settled by humans, the question of how and when people first came to the Americas has long intrigued scientists.
A new genetics study published Tuesday in Cell Reports finds that some of the first arrivals came from China during two distinct migrations: the first during the last ice age, and the second shortly after.
"Our findings indicate that besides the previously indicated ancestral sources of Native Americans in Siberia, the northern coastal China also served as a genetic reservoir contributing to the gene pool," Yu-Chun Li, one of the report authors, told AFP.
