A flowering bottle tree, or desert rose, is pictured on April 13, 2021, in the Hagher Mountains on the centre of the Yemeni island of Socotra, part of the remarkable flora found only here. - The archipelago's remote location helped it forge its astonishing nature millennia ago - a third of the main island's plants are unique, from bulbous bottle and cucumber trees to alien aloes. But the 130 Km (80 mile) long island also oversees busy global shipping lanes at the crossroads between Africa and the Arabian Peninsula. (Photo by Peter MARTELL / AFP)