M-44s are spring-loaded devices stuck in the ground and scented with decomposed animal tissue. They blast cyanide into the mouth of any creature that bites and pulls them. They were introduced in 1967, to replace gunpowder-driven Coyote Getters. M-44s are designed to kill coyotes, foxes and feral dogs that sometimes prey on sheep and newborn cattle. They also kill at least 150 nontarget species....