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Polar bears have hollow hair. Each hair is a clear hollow tube which reflects the light, making polar bears' fur appear white, though each hair is actually transparent.

Alpacas have hollow hair. They are indigenous to the Andes mountains and live in sub-zero climate. To accomodate this they have hollow hair to insulate and keep them warm. Similarly, llama have hair with a hollow core fibre.

Hollow hair, in fact, is an adaptation of animals which live in very cold climates. Reindeer, or caribour, also have soft hollow hairs, densely packed together.

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13y ago
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5mo ago

Polar bears have hollow hair that helps them retain heat and stay warm in their cold environments. Additionally, porcupines also have hollow quills that serve as a form of defense against predators.

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Q: What animals have hollow hair?
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