Social Studies
Social Studies, 20.08.2019 23:30, zionboy77

1. how does fossil evidence indicating that bears survived the last ice age contribute to ideas about human migration in north america?
2. do you think it is possible that if bears could have survived the ice age, humans could too? explain your answer.
3. scientists sometimes need to revise theory in light of new evidence. explain how the discovery of 12,000-year-old tools in south america caused scientists to rethink their explanation of human migration to the americas.

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