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The Natural System of Wrangel Island Reserve site in Russia was inscribed on the World Heritage List in 2004. Located well above the Arctic Circle, the site includes the mountainous Wrangel Island, Herald Island, and surrounding waters. The reserve has exc
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Natural System of Wrangel Island Reserve, Russian Federation

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Walruses use sea ice as platforms on which to nurse their young and launch their dives.
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Walrus Rests on Ice

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Whales are identifiable by their distinct pattern of callosities.
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Whale Callosities

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Phoenix, a North Atlantic right whale tracked by researchers, was spotted near New Hampshire on May 5th, 2010.
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Phoenix Sighting May 2010

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Scientists document a direct relationship between Arctic sea ice and polar bear survival.
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Forecast for Polar Bear Populations

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A bottlenose dolphin carries a sponge, which it uses as a tool to dig up prey from the seafloor.
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Sponge-Wielding Bottlenose Dolphin

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A polar bear and its cub in Arctic National Wildlife Refuge, Alaska.
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Polar Bear Mother and Cub

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The right whale Phoenix, and her calf, swimming off the coast of Florida.
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Phoenix and Her Calf Sighted in February 2012

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Dolphins swimming among oily patches in the Gulf of Mexico
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Dolphins Swim in Oily Waters

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dugong feeds on seagrass in the Red Sea
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Dugong Feeding

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A Florida manatee swims through a channel into a freshwater spring late in the day.
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Florida Manatee

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A 3-D reconstruction of the skull of a fin whale fetus.
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Keeping An Ear Out For Whale Evolution

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