スミソニアン国立動物園のインスタグラム(smithsonianzoo) - 1月28日 07時05分

👋🐵 Hey hey, meet the titi monkeys! When Henderson and Kingston are trying to locate one another in our Amazonia rainforest, they make several unique sounds.👂 Henderson’s call often begins as a high-pitched “squeak” and transitions into a deeper “wok-wok” vocalization. Kingston also squeaks, but her tone is a bit softer than Henderson’s is. 🕐 KEEPER TALKS: http://s.si.edu/2h3CN1W.

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