In this Wednesday, April 15, 2015 photo, Younis Hamad al-Nil, 35, sails his wooden boat on the Nile River on the outskirts of Khartoum, Sudan. For 20 years, he has made the same trip, using his expert eye to search for suitable patches of water. Once satisfied with the location, he drops his net; retrieving it a half hour later to survey his haul. (Photo by Mosa'ab Elshamy/AP Photo)
