A Dragon's Blood Tree grows on a hillside at Homhil in the northeast of the Yemeni island of Socotra, a species found only on the Indian Ocean archipelago, on April 12, 2021. - 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)