Ice shelf collapse: What does it mean?
From krill to king crabs, the collapse of a 160-square-mile portion of the Wilkins Ice Shelf in Antarctica could mean many changes for wildlife at the bottom of the world.
Most inhabitants of our planet will never get a firsthand look at a polar bear at the North Pole or a penguin at the South. But polar scientists already see changes in plants and animals from rapidly warming temperatures.
"Because of their extreme environments, they tend to be highly sensitive to temperature changes," said marine biologist James McClintock of the University of Alabama at Birmingham.
