Otter pelts feel smooth and soft to us, but if you look at otter hair with a microscope you can see that it's covered in tiny, geometric barbs. The barbs help the hair mat together so tightly that the fur near the otter's body is almost completely dry. And keeping the animals dry is key to keeping them warm. If you would like to support us, please subscribe to our YouTube channel TIUTAC, or become a member on Patreon.
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