Bear-Crow

Bears sometimes kill and eat people. This is bad for the people, because they're no longer alive, and bad for the bears, because they're usually hunted down and shot. It's also bad for the area, because it hurts tourism. So, let's solve this.

Bears are reasonably smart, at least as smart as rats. So, using conditioning (behavioral, not in-shower fur care) we can prevent them from going anywhere near humans. Now, bear conditioning is sort of baked <link>, but it's crude, essentially shouting and pelting them with rubber bullets. So let's set up camp. Literally, a tent, a truck with human sound track and campfire smell and food smell. Only there's electric fence type shockers on all the objects, and when touched, the fake humans give off a nasty blast of compressed air, or something.

You could dot these about the place, especially the bigger national parks, and eventually, the bears will learn that things that sound and look like humans may smell like food, but they hurt, and there's no food. Back to the river for salmon it is.