For almost 50 years physical scientists have sought the answer to whether or not the vast West Antarctic Ice Sheet collapsed the last time global temperatures were this high. Researchers turned to the DNA of a small Antarctic octopus...

For almost 50 years physical scientists have sought the answer to whether or not the vast West Antarctic Ice Sheet collapsed the last time global temperatures were this high. Researchers turned to the DNA of a small Antarctic octopus for clues to the deep past.

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