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5

The Icy Heart of Polar Seas

Lecture no. 5 from the course: National Geographic Polar Explorations

The Icy Heart of Polar Seas

Taught by Professor Michael E. Wysession and 4 others | 28 min | Categories: The Great Courses Plus Online Travel Courses

Virtually every living thing in polar waters—from single-celled phytoplankton to whales—has evolved in a world dominated by sea ice. Study how Arctic and Antarctic marine ecosystems work, and consider what happens to a sea ice-dependent marine ecosystem when the sea ice begins to disappear.

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