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Global warming may cause the North Bering Sea to lose its Arctic classification and cause the breakdown of existing ecosystem from clams and worms to eider sea ducks and walrus. What part of the brain is affected by the learning difficulty dyscalculia, the lack of mathematics comprehension? The tropical Australian beaches closed for half the year by the most poisonous creature in the world, the large box jellyfish. Plus, why immitation is a matter of survival for the Amazonian dart frog.