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.
Knut (polar bear)
A year after his public debut, Knut was reported as weighing more than 130 kg (286 lb). A plate of six-inch glass, strong enough to resist a mortar blast, was erected between him and zoo visitors. At the end of March 2008, Markus Röbke, one of the keepers who helped rear Knut, reported that the bear should leave the zoo as soon as possible in order to help him acclimate to a life alone. Röbke also said that Knut plainly misses his past father-figure, Thomas Dörflein, and has become so used to attention that he cries when no one is near his enclosure. "Knut needs an audience," Röbke stated. "That has to change". In April, animal welfare campaigners criticized the zoo for allowing Knut to kill and eat ten carp from the moat surrounding his enclosure, saying that it was a breach of German animal protection regulations. The zoo's bear expert, Heiner Klös, however, said that Knut's behavior was "all part of being a polar bear."