Wildlife of China are short, furry animals with short, rounded ears and thick fur, but they differ markedly in size, habit and habitat. The sable, a species of marten, is prized for its fine fur, which along with ginseng and deer antler velvet, are known as the "three treasures of Manchuria." The sable is found in Manchuria (also called the Northeast) and Altai region of northern Xinjiang. The beech marten of western China and yellow-throated marten of southern China are closely related to the sable. The Siberian weasel, known locally as the "yellow rat wolf," is the most common weasel in China. It
Fur trade waters between the Columbia River to the south and Cook Inlet to the north. The fur of the Californian southern sea otter, "E. l. nereis", was less highly prized and thus less profitable. After the northern sea otter was hunted to local extinction, maritime fur traders shifted to California until the southern sea otter was likewise nearly extinct. The British and American maritime fur traders took their furs to the Chinese port of Guangzhou (Canton), where they worked within the established Canton System. Furs from Russian America were mostly sold to China via the Mongolian trading town of Kyakhta, which