We have an incipient invasion of these critters into Southern Canada. I had a supposedly educated biologist tell me it wasn’t a real issue as the cold would kill them off. I gather she never heard of a Russian Wild Boar. Russia probably has cold weather too.
Over the years I have realized that book sense doesn’t necisarrilly translate to common sense (which ain’t so common any more). Something tells me you biologist would have to have one of ‘em bite her on the butt to wake her up.