polar bears
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Polar Bears That Persist
Fionna M. D. Samuels: This is Scientific American’s 60-Second Science. I’m Fionna Samuels. The life of a polar bear is…
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Fionna M. D. Samuels: This is Scientific American’s 60-Second Science. I’m Fionna Samuels. The life of a polar bear is…
Read More »