ADDIS ABABA, Ethiopia — The peoples of the Lower Omo River Valley in southwestern Ethiopia have never had an easy task in ensuring their own survival. Hot and dry, with temperamental rainfall, the region demands ingenuity and flexibility from its inhabitants. At least 200,000 people from the Bacha, Bodi, Dasanech, Hamar, Kara, Kwegu, Murle, Mursi […]