Those in northern China are large; those in the South, small; and those on Taiwan, smaller yet. The Japanese breeds Akita and Kai also belong to the pariah line.
笨狗的後代散佈極廣，華北的體型較大，華南的小些，台灣的更小；而日本的知名犬種，如秋田犬、甲斐犬，應全屬中國的笨狗系統。