The pine marten’s medium-size substantially varies geographically and males outweigh females by 12-30%.
The pine marten is a medium-sized carnivore, about the size of a large domestic cat with similar proportions. Its head and body length is 450-580 mm and tail length is 160-280 mm.
There is substantial size variation found geographically.
Sexual dimorphism is also seen in size, with males outweighing females by 12-30%.