スミソニアン国立動物園のインスタグラム(smithsonianzoo) - 7月12日 07時29分

"Researchers at the Zoo and Smithsonian Conservation Biology Institute’s endocrine lab are hoping to better understand the biology of red pandas by looking at their hormones. A great way to look at an animal’s hormones is through its poop! In order to know which red panda the fecal sample came from, we put glitter on the fruit that we use as rewards during training sessions. The following morning, we can tell which fecal sample belongs to which red panda; Asa’s poop has gold glitter, and Tusa’s has green glitter."- Asia Trail Keeper Tallie Wiles

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