response: Well most european countries actually prevent the killing of healthy stray dogs.
history: I was thinking about volunteering at an animal shelter, do you know anything about them? Oh cool.   Well I know about "no-kill" shelters.   Even if it's full, a "no-kill" shelter will not kill treatable or healthy animals.  They only use euthanasia for animals that are dangerous to the public, or if they are terminally ill. I think the no-kill shelters are much better than the alternative. Do you know anything else?
knowledge: In Europe, of 30 countries included in a survey, all but four (Czech republic, Germany, Greece, and Italy) permitted the killing of healthy stray dogs.