Navy SEALs may be the most rigorously trained men and women of the U.S. military, but a couple of other mammals also harbor stealthy underwater skills—with no need to wear a wetsuit. Bottlenose dolphins and California sea lions (a close cousin of real seals) will soon be defending Naval Base Kitsap in Bangor, Washington, reports the Kitsap Sun. The new enlists are undergoing special training in San Diego to locate underwater mines and identify intruding swimmers or divers. When they report north for active duty in 2010, the sea lions will even be prepared to cuff the leg of a presumed terrorist so they can be reeled in by human handlers. What makes these creatures so uniquely suited for the job? In addition to dolphins' well-known intelligence and agility, they also evolved rapid processing of sounds—about three times that of humans. And even the fastest SEALs can't match their speed: bottlenose dolphins swim at rates of up to 20 mph (California sea lions can break 12 mph)...