has a few Mammal systems. They are all dedicate to mine location. There were some systems developed in the cold ward era when we concerned about Soviet Spetznatz divers. The dolpins were trained to force swimmer to the surface. They would do this by nugging them with their head. THen some got the bright idea of putting a snare like device so the nugging ensnarred the diver--there wer a few deviation but none ever involved projectiles and though you can not escape a dolphins notice while in the water, the whole concept was eventually scrapped----or was it?
Really incredible animals though---