アメリカ内務省さんのインスタグラム写真 - (アメリカ内務省Instagram)「I ❤️ back scratches! Real world cliff hangers, Dall sheep love their mountains. They ramble along rocky ridges and sleep on steep slopes in rugged alpine areas. Male Dall sheep, called rams, have a distinct feature – their massive curling horns. They start growing their horns around 3 years old and they make pretty fantastic multitools. From playing, back scratches and protection, their spiral and pointy horns often come in handy and are made of keratin, the same protein as our hair and nails. Photo by @denalinps #wildlife #alaska #denalinationalpark #publiclands Alt Text: A male Dall sheep scratches its back with his horn and has a satisfied sense of relief on his face. In the foreground, there are green leaves that are out of focus, while blue flowers and shrubbery make up the background.」8月31日 6時10分