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The Navy's Other Seals ... And Dolphins

01:56
In 2003, Zak, a 375-pound California sea lion, was being trained by the Navy to locate swimmers near piers, ships and other objects in the water considered suspicious and a possible threat to American military forces. (AP/U.S. Navy)
In 2003, Zak, a 375-pound California sea lion, was being trained by the Navy to locate swimmers near piers, ships and other objects in the water considered suspicious and a possible threat to American military forces. (AP/U.S. Navy)

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