Yellow-throated marten larger than other Old World martens; males measure in body length, while females measure . Males weigh , while females weigh . The anal glands sport two unusual protuberances, which can be used to secrete a strong smelling liquid for defensive purposes. The yellow-throated marten has relatively short fur which lacks the fluffiness of the pine marten, sable and beech marten. The winter fur differs from that of other martens by its relative shortness, its harshness and its luster. It is also not as dense, fluffy and compact as that of other martens. The hairs on the tail are short
American marten martes"). Specific predators vary by geographic region. In Newfoundland, red foxes ("Vulpes vulpes") were the most frequent predator, though coyote ("Canis latrans") and other American marten were also responsible for some deaths. In deciduous forests in northeastern British Columbia, most predation was attributed to raptors. Of 18 American marten killed by predators in northeastern Oregon, 8 were killed by bobcats ("Lynx rufus"), 4 by raptors, 4 by other American marten, and 2 by coyotes. Throughout the distribution of American marten, other predators include the great horned owl ("Bubo virginianus"), bald eagle ("Haliaeetus leucocephalus"), golden eagle ("Aquila chrysaetos"), Canada lynx ("L.