17 Animal Invaders That Took Over New Territories—and Won’t Leave
Some animals don’t just adapt—they take over. From tiny hitchhikers to runaway pets gone wild, these invaders have muscled their way into places they don’t belong—and they’re not backing down. They outcompete locals, wreck ecosystems, and multiply like there’s no tomorrow. People try traps, fences, even full-on eradication campaigns… but the animals? They just keep …










