National Geographic Travelのインスタグラム(natgeotravel) - 7月30日 03時26分

Photo @materas // Aspen Grove in autumn, Red Mountain Pass, Colorado. Aspen trees grow in clonal colonies and spread through their root system. Here a colony in the middle holds its leaves longer than adjacent colonies. A colony can live for tens of thousands of years, like the so called Pando colony in Utah, estimated to be 80,000 years old!

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