There's a new scientific paper out from the journal Proceedings of the Royal Society B, which studied the outbreak of wild boar in the area affected by the Fukushima nuclear explosion in 2011. As The Register explains:
— Read the restThe local wild boar – a subspecies endemic to the region known as the Japanese Boar (aka Sus scrofa leucomystax or the White-Moustached Pig) – having created a fiefdom covering all of the locale vacated by over 160,000 displaced humans, became cocky and aggressive, and also lost their natural wariness.