But he points out that we deal with similar issues already, such as invasive species running riot in countries where they have no natural predators. (newscientist.com)
Or he could run riot against the bottom 5 and get the majority of his goals there and score 22. (justarsenal.com)
Nowhere is safe, and while not all alien species run riot at the expense of the locals, their sheer number and variety makes it likely that some will. (newscientist.com)