Most adult female grizzlies weigh 130â180 kg (290â400 lb), while adult males weigh on average 180â360 kg (400â790 lb). Average total length in this subspecies is 198 cm (6. 50 ft), with an average shoulder height of 102 cm (3. 35 ft) and hindfoot length of 28 cm (11 in). Newborn bears may weigh less than 500 grams (1. 1 lb). In the Yukon River area, mature female grizzlies can weigh as little as 100 kg (220 lb). One study found that the average weight for an inland male grizzly was around 272 kilograms (600 lb) and the average weight for a coastal male was around 408 kilograms (900 lb). For a female, these average weights would be 136 kilograms (300 lb) inland and 227 kilograms (500 lb) coastal, respectively. On the other hand, an occasional huge male grizzly has been recorded which greatly exceeds ordinary size, with weights reported up to 680 kg (1,500 lb). A large coastal male of this size may stand up to 3 metres (9. 8 ft) tall on its hind legs and be up to 1. 5 metres (4. 9 ft) at the shoulder.
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