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

Uploaded: 2018-06-08T15:10:17Z
Duration: 2 min 52 s
Description: Travel to the Antarctic, where the disappearance of a tiny crustacean threatens an entire ecosystem.

Paradise Bay, Antarctica

Updated 2:57 PM ET, Fri June 8, 2018

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