Dolphins find mines through sonar. Sonar helps the sound to bounce off of the object they are retrieving or finding which helps them to locate the object. When they find it they attach a float to it so the experts can remove the mine safely. The dolphins are rewarded with fish when they do a job well done; they've found 22 mines in the Persian Gulf so far. Sea lions also help the Navy by locating enemy divers. Once they find them, they attach locking cuffs on their legs so they cant move and a rope is attached that floats to the surface so they can be questioned by American security.
Anonymous. (2003). "Searching the Sea" . Scholastic News. 59 (24) Retrieved January 28, 2008 from ProQuest databases.
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This sounds like it is going to be very interesting article! Its amazing how animals are able to do things like that in a way that humans cant. Good luck!
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