Fat or Feathers?

How do polar animals survive and thrive in their harsh environments? There are two main methods that these animals use to stay warm in their icy habitats: blubber and fur (or down). Walruses,¬†whales, and many seals have a thick layer of blubber insulation. This blubber is highly vascularized to insulate them from the intense cold … Continue reading Fat or Feathers?

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