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A polar bear travels submerged under water - a tactic often employed to surprise prey. As part of a fragile Arctic ecosystem, the bears are threatened by the recent dramatic reduction in ice cover. Sea ice - frozen seawater that moves with the ocean currents - provides an important habitat and resting place for many animals. The Artic ice cover reached a record low in 2007. Many attribute this situation to global warming.

The Alaskan Tree Frog freezes solid in the winter, even stopping its heart beating. In Spring, it thaws and simply hops away.

i simply like pictures from all sorts of things.the pictures i blog here are not mine. i found them here on tumblr or all over the internet. if you see your picture here and it is not linked to you or you want to be credited, please contact me =)>