Women try to peel outer layers of cassava for processing at the International Institute of Tropical Agriculture (IITA) in Ibadan, southwest Nigeria, on June 22, 2017. The International Institute for Tropical Agriculture (IITA) is marking its 50 years of research achievements in addressing Africa's most pressing challenges of hunger, poverty and nutritional security. IITA works on improving the productivity of major African staples that include cassava, yam, maize, banana and plantain, cow pea, and soyabean. / AFP PHOTO / PIUS UTOMI EKPEI (Photo credit should read PIUS UTOMI EKPEI/AFP/Getty Images)
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