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.
Kodiak bear
The size range for females (sows) is from , and for males (boars), it is . Mature males average over the course of the year, and can weigh up to at peak times. Females are typically about 20% smaller and 30% lighter than males, and adult sizes are attained when they are 6 years old. Bears weigh the least when they emerge from their dens in the spring, and can increase their weight by 20–30% during late summer and fall. Captive bears can sometimes attain weights that are considerably greater than those of their counterparts in the wilderness.