Which among the following adaptations is not common to polar bears, penguins, seals and whales?

Thick oily fur coats

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Limbs adapted for swimming

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Thick layer of blubber under their skin

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All of the above

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Solution

The correct option is A
Thick oily fur coats

Penguins are birds and do not have fur; they have feathers! Whales also do not have fur. Polar bears, penguins, seals and whales all have limbs modified to be wide or are turned into flippers that help them swim. All of them possess a thick coat of fatty blubber that insulate them against the cold

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