ナショナルジオグラフィックさんのインスタグラム写真 - (ナショナルジオグラフィックInstagram)「Photo by Keith Ladzinski @ladzinski | With a long exposure, a quiver tree (kokerboom) stands tall under a sky of streaked stars. These trees are well suited to arid places with severe heat and low precipitation, due to an ability to store water within their trunks. They’re part of the aloe family, and have long been used for medicinal purposes. Photographed in the Kalahari Desert of South Africa. To see more photos of this beautiful part of the world please visit @ladzinski」11月15日 16時39分