Females have more modest parameters, their weight ranges from 120 to 150 kg. The oldest known wild Kodiak bear was a 34-year-old sow. They weigh up to 1,500 pounds. How much does a brown bear weigh? Size: Length is 6 to 9 feet long for males. 4 months 5 lbs. Thank you for visiting our new website! Cubs are born in the den during January or February. The species is distributed across abundant of northern Eurasia and North America. 20-years 275 lbs. Weight depends on where they live and diet. The growl of my truck engine dropped an octave as I shifted gears to climb a hill and then began making my way around a bend. Because it's still in development, we'd love to hear your comments, tips and feedback Males are about 30% larger than females. The oldest boar was 27. 1-year 50 lbs. A year prior to his death, zookeepers estimated his weight … Females are about 20% smaller, and 30% lighter than males. Weight: About 400 to 1200 pounds for males. He was 22. Females about 5 to 8 feet long. Brown bear and polar bear cubs are marginally larger, about 17.5 to 28 ounces (500-800 g) in weight and 12 inches (30 cm) in length. On average a newborn black bear cub weighs little more than 10.5 ounces (300 g) and is 9 inches (23 cm) long. While there is generally much variation in size between brown bears in different areas, most usually weigh between 115 and 360 kg (254 and 794 lb). [2] 4 year 150 lbs. Robert Neubecker. Bear (Female) Bear (Male) Age Weight Age Weight New born 8 ounces New born 8 ounces 4 months 5 lbs. Bears who eat lots of salmon put on weight quickly. Many people in North America use the common name “grizzly bear” to refer to the smaller and lighter-colored bear that occurs in interior areas and the term “brown bear” to refer to the larger and typically darker-colored bear in coastal areas. Brown bear 747 stands in a river hunting for salmon to fatten up before hibernation in Alaska on 20 September. The Kodiak bear, on the other hand, commonly reaches sizes of 300 to 600 kg (660 to 1,320 lb), and has even been known to exceed weights of 680 kg (1,500 lb). Photograph: US National Park Service/Reuters G u a r … The brown bear could be a massive bear with the widest distribution of any living ursine. FACTS ABOUT BROWN BEAR. The grizzly bear is a kind of brown bear. The average weight of a bear of various species ranges from 150 kg to one ton. Welcome to Fat Bear Week 2020!Katmai National Park and Preserve’s brown bears spent the summer gorging on 4,500-calorie salmon, and they've transformed into … Females weigh about 300 to 800 pounds. World record brown bear: (see Grizzly Bear). Typically bear cubs weigh between one three-hundredth and one five-hundredth as much as their mother. 8-years 150 lbs. Bear, it’s what for dinner. 4-years 125 lbs. 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