Results tagged “polar bear” on Earth Touch Blog
Flickr photo essay – polar bears, by Len Haier Apr 17 2008
Polar bears (Ursus maritimus) are the largest carnivores on earth, and can weigh between 300 and 600kg (660-1320lb). They are found in Arctic areas only, including Denmark, Russia, Norway and Canada.
They are largely dependent on the sea ice environment of the Arctic, and are considered by environmental groups to be extremely vulnerable and a threatened species.
Tags: artic, bear, canada, carnivore, denmark, flickr, mammal, north america, norway, photograph, photography, polar bear, russia, vertebrateDid you know? Nictitating membranes Oct 1 2007
Many animals have a third eyelid called a nictitating membrane. This is a clear or translucent membrane that can be drawn diagonally or horizontally across the eyeball. It protects the eye from foreign particles, dryness and injury.
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