Boards
famous dogs - sergeant stubby
http://en.wikipedia.org/wiki/Sergeant_Stubby
After being gassed himself, Stubby learned to warn his unit of poison gas attacks, located wounded soldiers in no man's land, and — since he could hear the whine of incoming artillery shells before humans could — became very adept at letting his unit know when to duck for cover. He was even solely responsible for capturing a German spy in the Argonne.
8==8