Into the Deep with Elephant Seals
May 04, 2011•12 min
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Episode description
Thousands of northern elephant seals – some weighing up to 4,500 pounds – make an annual migration to breed each winter at Año Nuevo State Reserve, on the San Mateo County coast. Marine biologists are using high-tech tools to explore the secrets of these amazing creatures, which can hold their breath for an hour and dive a mile below the surface.
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