Penguins, Seals, and Krill: Antarctica's fragile food chain - CNN

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Penguins, Seals, and Krill: Antarctica's fragile food chain

Paradise Bay, Antarctica

Updated 1857 GMT (0257 HKT) June 8, 2018

Paradise Bay, Antarctica (CNN)Travel to the Antarctic, where the disappearance of a tiny crustacean threatens an entire ecosystem.