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The ice bridge theory, which suggests that a land or ice connection existed between regions like Siberia and North America during periods of glaciation, is considered plausible but has limitations. Geological and paleoclimatic evidence supports the idea that lower sea levels during ice ages could have allowed for such connections, facilitating human and animal migration. However, the specifics of how and when these ice bridges formed are still debated among scientists, and the theory does not account for all migration patterns observed in the archaeological record. Overall, while the theory holds some merit, it is part of a more complex picture of ancient migration.

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1mo ago

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