Food & Drink0 min ago
Polar Bears
3 Answers
Why do polar bear's have blue tongues?!
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For more on marking an answer as the "Best Answer", please visit our FAQ.Although it is hard to see beneath their white fur, polar bears have strongly pigmented, deep black skin. This allows them to absorb much more heat than pale skin and so helps to protect them against the icy cold Arctic. It is possible that the pigmentation of the skin has extended to pigmentation of the mucus membranes (including the tongue).
Polar bears do not sweat through their skin, and their paws are also unsuitable for heat regulation, being thickly callused to prevent the bears from cutting themselves on sharp ice edges. The bears therefor regulate heat, like dogs, by panting. The tongue is then blue as a result of high blood circulation.
http://www.awi-bremerhaven.de/ClickLearn/newFAQ/FA
Q_Eisbaer-en/Fauna8-e.html
Polar bears do not sweat through their skin, and their paws are also unsuitable for heat regulation, being thickly callused to prevent the bears from cutting themselves on sharp ice edges. The bears therefor regulate heat, like dogs, by panting. The tongue is then blue as a result of high blood circulation.
http://www.awi-bremerhaven.de/ClickLearn/newFAQ/FA
Q_Eisbaer-en/Fauna8-e.html