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polar bear
Some stories from the Arctic have mentioned:
* polar bear drowning as they swim further and further out in search of seal, on the ice floes, which are melting away.
* cannibalism.
* scavenging municipal dumps for something to eat.
* brown bear invading the polar bear's domain, as temperatures march north.
* novel parasites, viruses, and bacteria invading the Arctic, via bird migrations, which share whale kills with polar bear.
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