ATRUN, SUDAN - DECEMBER 28: Bisharin nomad girls collecting salt in Atrun crater, Bayuda desert, Atrun, Sudan on December 28, 2018 in Atrun, Sudan. (Photo by Eric Lafforgue/Art in All of Us/Corbis via Getty Images)
ATRUN, SUDAN - DECEMBER 28: Bisharin nomad girls collecting salt in Atrun crater, Bayuda desert, Atrun, Sudan on December 28, 2018 in Atrun, Sudan. (Photo by Eric Lafforgue/Art in All of Us/Corbis via Getty Images)