ナショナルジオグラフィックさんのインスタグラム写真 - (ナショナルジオグラフィックInstagram)「Photo by @drewtrush | Did you know that the average life span of a female grizzly bear is said to be 26 years. When she has cubs, they'll stay with her for two years as she helps raise and protect them. These bears were photographed in northwestern Wyoming. To see more wildlife images from across the West, follow along with photographer @drewtrush. #grizz」12月22日 20時39分