 In contrast, the "yamainu" was described as a similar animal, but with speckled yellowish fur, unwebbed toes, a foul odor and inedible meat.Ranzan's works were studied by German botanist Philipp Franz von Siebold during his tenure in Dejima.He purchased a female mountain dog and a wolf in 1826, describing both in his notes as distinct, and preparing two sketches illustrating their differences.