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fur

Brain Post: Why Do Humans Have No Fur?

There are a lot of theories about why humans don’t have any fur.  We’ve narrowed it down to the 3 leading theories for you. Of the 5,000+ mammal species on Earth, very few are naked.  We are one of them.  The basic reason we have no fur is that it must have been an evolutionary advantage: “All [no fur theories] […]

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Avatar photo SnowBrains | August 2, 2019
13 Comments

Polar Bears: The Crazy Science Behind Their Black Skin and Transparent Fur

Polar Bears

Forget everything you’ve seen and learned – polar bears aren’t actually white. What? What color are they? Well, it’s complicated… An object’s color in general is determined by what color of light it reflects. A red car is reflecting red light, and absorbing all other colors. A black object is absorbing all colors, and reflecting none. White, on the other hand, […]

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Mike Lavery | July 17, 2018
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