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Polar bears should be protected because they are the only large predators that live ON ice floes. Thus, they fill a unique niche in the arctic environment. A relative of brown bears that is often considered a marine mammal, they are a unique example of a large carnivore that is known to have made the transition from land to sea. Whales, dolphins and otters were all descended from small land carnivores; the size of the land ancestors of seals, sea lions and walruses is unknown. Polar bears also bring in tourist dollars that are much more valuable than the price of their carcasses, especially over the long term.

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16y ago

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