Thursday, 28 February 2013

International Polar Bear Day

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27th February is celebrated as International Polar Bear Day. Here's a little fact for those of you who didn't know this- The skin of the polar bear is actually black, not white; and has a thick layer of fat underneath, all of which serve as insulators. Its white appearance is due to the scattering and reflection of visible light by its fur, which is made of transparent hair shafts.
This work by Rohan Chakravarty is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License.

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