bgarcia17 bgarcia17
  • 17-08-2021
  • Biology
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why are Polar bears are much larger than American black bears

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baseballchamp2005
baseballchamp2005 baseballchamp2005
  • 17-08-2021
This is because of natural selection; since polar bears live in a rough environment, natural selection gives them more fur, more muscle, and can go longer without food
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