スミソニアン国立動物園のインスタグラム(smithsonianzoo) - 8月20日 07時06分

What can an orangutan’s teeth tell us? Its age, among other things! Infant orangutans in zoos around the world—including our very own Redd—are helping their wild counterparts by simply showing keepers their chompers. STORY: http://s.si.edu/2wTXMrt
Documenting tooth development and sharing information with colleagues can help rehabilitation centers in Indonesia and Malaysia best provide care for young orangutans whose ages are otherwise a mystery. #InternationalOrangutanDay #EarthOptimism

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