Did automobiles replacing horses, diminishing horse population, diminishing horse suffering – as a consequence of work forced upon the animals. Is that moral win for horses; less suffering? Although their population is vastly smaller than 130 years ago.
The Soviet Union trained dogs to carry explosives to the underside of enemy tanks. sometimes it backfired. but the dogs were meant to be blown up is my point. they were explosive delivery machines, functionally not unlike a FGM-148 Javelin antitank missile