 Dolphins from the U.S. Navy's marine mammal program are trained to detect underwater mines. Recently those skills led to a discovery in an unexpected field, marine archaeology. So during a routine training evolution in one of the practice fields off the Hotel del Coronado, the dolphins reported the presence of an object that wasn't in an area that we had anticipated. Once the dolphins had marked the position of the object, as a matter of our routine training the diver had gone down and investigated. The object was recovered shortly thereafter it was discovered that this is in fact a very unique piece of naval archaeology. This discovery was a late 19th century steam-powered held torpedo which arrived at Andrews Air Force Base May 29th for transfer to the Naval History and Heritage Command's underwater archaeology laboratory for conservation. This artifact is what we refer to as a composite artifact, which means it's made up of several different components, several different materials in this case. We have copper alloy, we have iron alloy steel, we have potentially rubber gaskets. So a mix of both inorganic and inorganic materials that all have different methods of degrading, of corroding, and also different needs subsequently for conservation treatment. So we have to keep all those differences in mind when we're developing a treatment plan and take into account all those different components. This has a potential to really give us an insight into how this really early phase of torpedo development took place. And in general, through underwater archaeology we're able to reach the average sailor, we're able to reach the life on board at sea to capture those moments that you really don't see in the historical documents that focus on important events, important people, important battles. For All Hands Update, I'm Petty Officer Joshua Shepard.