Respuesta :
Answer:
While evidence of animal migration is more solidified, the human story may be more complicated. As of 2008, genetic findings suggest that a single population of modern humans migrated from southern Siberia toward the land mass known as the Bering Land Bridge as early as 30,000 years ago, and crossed over to the Americas by 16,500 years ago. Archaeological evidence shows that by 15,000 years ago, humans had made it south of the Canadian ice sheets.
Explanation:
The most widely accepted theory about early human migration to the Americas is "Land Bridge"
What is Land Bridge?
Here has long been a debate among scholars about the origins of the first inhabitants of North America. The most widely accepted theory is that sometime before 14,000 years ago, humans migrated from Siberia to Alaska by means of a “land bridge” that spanned the Bering Strait. Genetic findings suggest that a single population of modern humans migrated from southern Siberia toward the land mass known as the Bering Land Bridge as early as 30,000 years ago, and crossed over to the Americas by 16,500 years ago. Archaeological evidence shows that by 15,000 years ago, humans had made it south of the Canadian ice sheets.
Hence, Land bridge theory is correct answer.
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