Flesh of the fruit of a cactus pear at the U.N. Food and Agriculture Organization in Rome, Italy, November 24, 2017. Thomson Reuters Foundation/Thin Lei Win

A cactus pear fruit, also known as prickly pear, in front of servings of the fruit, at the U.N. Food and Agriculture Organization in Rome, Italy, November 24, 2017. Thomson Reuters Foundation/Thin Lei Win

The flowers and pads of cactus pear at the U.N. Food and Agriculture Organization in Rome, Italy, November 24, 2017. Thomson Reuters Foundation/Thin Lei Win