That's because they're too damn weak to cause any problems for anyone else. They're small, they're scrawny, they refuse to eat plant matter which severely limits any civilizational development, and makes them more inclined to dine on their neighbors once fresh game can't be found.

That's because they're too damn weak to cause anyone any problems for anyone else. They're small, they're scrawny, they refuse to eat plant matter which severely limits any civilizational development they can, and makes them more inclined to dine on their neighbors once fresh game can't be found.