Editor's note: CNN's Kaj Larsen served as an active duty member of the U.S. Navy SEALs for five years and was trained in combat diving. For more on this story and others, check out "CNN Presents," Sunday night at 8 p.m. ET. San Diego (CNN) -- In a little-known part of the counter-terrorism world, one of the most effective detection systems is a 600-pound animal that works for about 20 pounds of fish a day.
Since the 1960s, the United States and a handful of other countries have trained dolphins and sea lions to detect sea mines and swimmers, and to recover inert torpedoes and testing objects used in Naval exercises.
Program officials estimate that the sea lions in the Marine Mammal Program have recovered millions of dollars of U.S. Naval torpedoes and instrumentation dropped on the sea floor.
The U.S. Navy kept its Marine Mammal Program a secret until the 1990s, a
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Tags: dolphins, sea lions, whales, marine mammals, USA, US Navy, port patrol, terrorist, protection, animal training, military, deployment, animal soldiers, security, shipd, attacks, special forces, marine mammal programm, pinnipeds, cetacean, navy warfare syst
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