Japanese marten Japanese marten The Japanese marten ("Martes melampus") is a mammal in the marten genus most closely related to the sable. It is 0.5 m (1.5 ft) in length typically, not counting a 20-cm-long tail (7.9 in), and between 1,000 and 1,500 grams (2.2 and 3.3 lb) in weight. Males are generally larger than females. The pelage varies in color from dark brown to dull yellow with a cream-colored throat. Both males and females are territorial, and the size of each individual's territory depending on food availability. The Japanese marten is omnivorous, preferring meat from fish, frogs, and small birds and
American marten American marten The American marten or American pine marten ("Martes americana") is a North American member of the family Mustelidae, sometimes referred to as the pine marten. The name "pine marten" is derived from the common but distinct Eurasian species of "Martes". It differs from the fisher ("Pekania pennanti") in that it is smaller in size and lighter in colour. 14 subspecies have been recognized. Two subspecies groups have been recognized based on fossil history, cranial analysis, and mitochondrial DNA analysis. None of the subspecies are seperable based on morphology and subspecies taxonomy is usually ignored except with regards to