What evolutionary feature do puffins use for insulation in cold marine environments, contrasting with marine mammals?

Answer

Dense, tightly packed, oily feathers

Puffins rely on their dense, tightly packed, oily feathers for insulation in the harsh, cold environment, which is an evolutionary specialization separate from the blubber insulation used by marine mammals like seals.

What evolutionary feature do puffins use for insulation in cold marine environments, contrasting with marine mammals?

#Videos

Puffin facts: smaller than you think | Animal Fact Files - YouTube

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