Studying Elephant Seals

In this excerpt from NOVA's "Ocean Animal Rescue," join biologist Daniel Costa and his team in the field as they study the surprising behavior of northern elephant seals.

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"Ocean Animal Rescue" is a NOVA Production produced by Hamilton Land & Cattle, Inc. Funding for NOVA is provided by ExxonMobil, David H. Koch, the Howard Hughes Medical Institute, the Corporation for Public Broadcasting, and public television viewers.

To learn more, visit http://www.pbs.org/nova/ocean911