Multiple choice general knowledge

Unlike other marine mammals, I have no layer of blubber to keep me warm.

  1. sea lion

  2. manatee

  3. sea otter

  4. humpback whale
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Sea otters are unique among marine mammals in that they lack a thick blubber layer. Instead, they rely on the densest fur in the animal kingdom (up to 1 million hairs per square inch) to trap air and keep warm. Sea lions, manatees, and whales all have blubber for insulation.

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