スミソニアン国立動物園さんのインスタグラム写真 - (スミソニアン国立動物園Instagram)「🐵🎂 Join us in wishing our siamang, Adi, a happy 12th birthday! Adi is head-strong, determined and smart—she tells keepers what she wants when she wants it! Puzzle feeders seem to be no match for her smarts; she’s already mastered many of them and can extract treats in no time. . . . Photo: Siamang Adi sits in her indoor enclosure. She grips a rope with her left hand and holds a piece of lettuce in her right.」5月2日 22時00分