Castorology (BEAVERS) with Rob Rich

3284.148 - 3312.938 Rob Rich

That's what waterproofing oils from their anal glands are constantly being lathered onto to keep them as sleek and waterproof as possible. But below that, you get more into some more downy, dense layers that are even softer. And so that is what's kind of right up against their body. The fur is so dense. I've heard it. One stat I seem to recall is like 23,000 hairs per square centimeter.