
Archaeologists analyzing 9,000-year-old human remains found in Alaska have discovered genetic signatures of a previously unknown migration to North America. The DNA doesn’t match any known ancient or modern Native American populations, suggesting a distinct group entered the continent but left few descendants. This challenges the established three-wave migration model of early American settlement. “This reveals a more complex picture of early human movement into the Americas,” explains anthropologist Dr. Michael Chen. The findings, published in Science, indicate at least four separate populations crossed from Asia to North America during the last ice age.