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Test ursi polari

Author:Andrei Tănase

What color is a polar bear's skin underneath its thick fur?

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What is the actual color of an individual strand of polar bear fur?

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How far can polar bears swim without stopping in search of food or ice?

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What is the primary and most vital food source for a polar bear?

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What happens when you film a polar bear with an infrared (thermal imaging) camera?

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Why do polar bears never hunt or eat penguins?

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How do polar bears do most of their hunting on the ice?

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What major physiological challenge do polar bears face due to their dense insulation and high activity levels?

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