The Frozen Isle

Undersea Edens: The Frozen Isle

A thousand miles off the southeast coast of Argentina sits the sub-Antarctic island of South Georgia. Massive glaciers, ice caps and snowfields cover 75% of the land, but it's far from desolate. Five species of penguin, elephant seals, fur seals and other aquatic creatures travel here each year to breed. This island teems with life, but climate changes have left its inhabitants, so adept at dealing with extreme cold, struggling to survive through long stretches of heat.

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An Unlikely Comeback

Teetering on the verge of extinction, the fur seal makes a comeback, but its prosperity comes at the expense of dwindling whale populations.