(refeed) 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. Watch NOVA every Wednesday night on PBS. Or join us online at pbs.org/nova. "Ocean Animal Rescue" is a NOVA Production produced by Hamilton Land & Cattle, Inc. Funding for NOVA is provided by David H. Koch, the Howard Hughes Medical Institute, the Corporation for Public Broadcasting, Lockheed Martin Corporation and PBS viewers. To learn more, visit http://www.pbs.org/wgbh/nova/nature/ocean-animal-emergency.html