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This Beaver Secretion Was Thought to Cure Ailments

3,183 观看· 10/24/23
Smithsonian Channel
Smithsonian Channel
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1,606
在 Discovery

Beavers secrete a substance known as castoreum, which they use to keep their fur waterproof. This made them a target for medieval doctors who used it as a remedy for ulcers, fevers and even...

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下一个


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