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Polar Bear, Svalbard Archipelago
Photo: Polar bear walks across a pack of ice on Svalbard Archipelago
WALLPAPER
As Arctic ice begins to melt, polar bears leave the tundra and venture onto the frozen ocean in search of seals to prey on. Their sharp claws and the fur on the bottoms of their feet give them traction on the slippery surface.
Photograph by Ralph Lee Hopkins

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