アメリカ自然史博物館さんのインスタグラム写真 - (アメリカ自然史博物館Instagram)「Gelada monkeys (Theropithecus gelada), known as “bleeding heart” monkeys because of the bright red patches of skin on their chest, are found in the highlands of Ethiopia. They are the world’s only grass-eating monkeys and spend most of their time on the ground rather than in the trees. While their range is currently very restricted, fossils show us that their ancestors lived all over the world. Photo: Rod Waddington」6月1日 14時17分