Appearances can be deceiving, as what looks like the dirt-covered dropping of an indigenous dog-sized animal is actually revealed in an X-ray (next slide) to have a nonorganic, mechanical interior and radio transmitter. Dropped in the vicinity of a downed airman, this T-1151 transmitter served as a homing beacon that broadcast signals to aircraft searching for the American in need of rescue from the “bush.” (U.S. Air Force)