Siberian fur trade fur surpasses all other types of fur due to its silky dense texture and luminous shades of beige, brown, gold, silver, and black. The darkest shades of sable fur are the most valuable. Next to sable, Siberian fox furs and squirrel pelts are the most valued furs from the region. In addition to sable, black and white fox, ermine, beaver, squirrel, lynx, wolf, wolverine, rabbit, marten, walrus, sea otter, and polar bear were also hunted for their pelts. Most of these fur bearing animals are found in the Siberian taiga, except for the sea otters and walrus that were found
Beech marten fissures and clefts in rocks, spaces between stones in rock slides and inhabited or uninhabited stone structures. It may live in tree holes at a height of up to 9 metres. Estrus and copulation occur at the same time as in the pine marten. Copulation can last longer than 1 hour. Mating occurs in the June–July period, and takes place in the morning or in moonlit nights on the ground or on the roofs of houses. The gestation period lasts as long as the pine marten's, lasting 236–237 days in the wild, and 254–275 days in fur farms. Parturition takes