成年雄性灰熊的典型重量约为 270 千克。原文摘录(英文):The grizzly bear, also known as the North American brown bear, grows up to 790 pounds. The most interesting thing about this species is the significant difference in sizes between male and female grizzlies.
While male grizzlies grow between 400 pounds to 790 pounds, female grizzlies only grow to a fraction of the males’ size, which is 290 pounds to 400 pounds.