Doria
Hi, Elle!
How right you are, re wolves and vaccinations....I seem to recall reading about one study (can't recall details, but results IMPRESSED me) in which wild wolves were captured, vaccinated for rabies, and tagged with radio collars. All the vaccinated wolves, and their family Packs, died of rabies. I think this happened back between 1930 and 1950, but I'm not sure.