Kodiak bear
An average adult male measures in length, and stands tall at the shoulder. The largest recorded wild male weighed , and had a hind foot measurement of . A large male Kodiak bear stands up to tall at the shoulder, when it is standing on all four legs. When standing fully upright on its hind legs, a large male could reach a height of . The largest verified size for a captive Kodiak bear was for a specimen that lived at the Dakota Zoo in Bismarck, North Dakota. Nicknamed "Clyde," he weighed when he died in June 1987 at the age of 22. According to zoo director Terry Lincoln, Clyde probably weighed close to a year earlier. He still had a fat layer of when he died.
Kamchatka brown bear
It is a very large bear, the largest in Eurasia, with a body length of 2.4 meters, to 3 meters tall on hind legs and a weight up to 650 kg (1433 lbs). It is nearly the size of the Kodiak bear; however, the skull is broader than that of the Ussuri brown bear, and compared to that of the Kodiak bear, the breadth of the skull is much greater in proportion to its length, the anterior narial opening is much shorter, and the molars differ in relative size and form. The greatest skull length for males is 40.3–43.6 cm and 25.8–27.7 cm wide, while the skulls of females measure 37.2–38.6 cm in length and 21.6–24.2 cm in width. Fur colour is predominantly dark brown with a violet tint. Light coloured individuals are rarely encountered.