In 2011, Fukushima’s nuclear evacuation left farm pigs behind; escaped pigs bred with wild boar, and 16% of sampled wild boar in the zone were hybrids

After the 2011 Fukushima nuclear accident, abandoned farm pigs bred with wild boar. A genetic study found that 16% of sampled wild boar in the exclusion zone had domestic ancestry, indicating interbreeding between the two species.