The Bering Land Bridge was exposed several times during the Pleistocene. The key time interval relative to its availability to Asian migration into the New World was:
A) 75,000-50,000 years ago
B) 35,000-11,000 years ago
C) 14,000-12,000 years ago
D) 12,000-9,000 years ago

Question

Quizplus · Accepted Answer

The key time interval relative to the Bering Land Bridge's availability to Asian migration into the New World was 35,000-11,000 years ago during the Last Glacial Maximum when sea levels were low enough to expose the land bridge. This allowed for the migration of humans and animals across from Asia to North America. Option A is too early, and there is no archeological evidence to support significant human population movements at that time. Option C is too late and corresponds to the time when the land bridge was already underwater. Option D is also too late and corresponds to the period when humans had already colonized much of the Americas.

The Bering Land Bridge Was Exposed Several Times During the Pleistocene