The Bumi also known as Nyangatom live south of the Omo national park and occasionally migrate into the lower region of the park when water or grazing is scarce .Numbering about 30,000. – 35, 0000 in population, the Bumi are agro- pastoralists, relying on cattle herding and flood –retreat agriculture (consisting mainly of Sorghum harvesting on the Omo and kibish River.) the Bumi tend to indulge in honey and frequently smoke out beehives in the park to get the honey inside the nests. The Bumi are known to be great warriors and quite frequently, active warmongers .they are often at war with neighboring tribes including Hamer, the Karo and Surma.
Small group of Bumi living along the Omo are specialized crocodile hunters using harpoons from a dugoaut canoe. The elder of both Sexes wear a lower lip plug, the men’s made from ivory and women made from copper filigree.