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(, Sun 1 Apr 2001, 1:00)
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that may or may not be true. If only we had some sort of virtually limitless resource tool at our finger tips to find out for sure.
(, Wed 14 Dec 2011, 14:53, 1 reply, 14 years ago)
Polar bear fur is transparent, it has no colour. Polar bears look white because of the way their fur reflects visible light. Of course, looking white helps a polar bear blend right into the ice and snow.
A polar bear’s fur also keeps it warm. The hairs trap heat, sending it to the skin (which is black). Just how good is a polar bear’s coat at trapping heat? In the past, scientists tried to keep an eye on polar bears using infrared cameras (cameras that photograph “heat”). But polar bears lose so little heat, the infrared cameras could not detect them. Now those are truly solar polar bears!
(, Wed 14 Dec 2011, 14:54, Reply)
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