People evacuated from Mountain side Namie and Iitate that even away from Fukushima nuclear plant. Pet and chickens were left behind there. I will never forget eighty of chickens how they cried when they got drinking water after a long time no water. In such area, inhabitant could get in the zone freely. However after made no-go zone they only have access to their home once a month. Hence many pets left behind or adopted. Many cats get a disease and only a cat grow if cats were born. I don't know the reason why.