スミソニアン国立動物園のインスタグラム(smithsonianzoo) - 1月17日 05時13分

Asian water dragons, like many lizards, have a pineal eye—a light-sensitive spot on the top of their head that acts as a “third eye” and allows them to regulate their body temperate, assists in hormone production and senses changes in light overhead. And they are great swimmers! When threatened, they seek refuge in water and can stay submerged underwater for up to 25 minutes. #AppreciateADragonDay

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