Those things don't just pop up and stay in one spot, they move up the chain faster than you can reload a rifle. The big predators start eating anything that gives them an advantage—plants, insects, even other mutated beasts—so their numbers drop and the whole local food web shifts. Lower plants get overgrown, smaller predators get starved, and habitats that once had a balance become either overgrown or barren. It's a domino effect, and if you want to keep the ecosystem from going overrun, you gotta hit the high‑value targets first.