article_snippet: the tribe are traditionally nomadic cattle-herders and traders in the Sahel .
article_snippet: Some of the colours worn by the subjects like A girl from the Oromo tribe in eastern Ethiopia on the right are stunning .
article_snippet: The end result of these years of work in tribal African societies is a book,
article_snippet: The man is from the Nyangatom people in Ethiopia.
article_snippet: There are only around 30,000 of the Nyangatom people and many are Nyangatom are nomadic, residing in mobile livestock villages that may migrate several times a year .
article_snippet: This Karo tribesman from Ethiopia (right) uses white chalk and purple ochre in This Karo tribesman from Ethiopia (right) vivid face painting .
article_snippet: Mursi are a pastoralist ethnic group .
article_snippet: This Karo tribesman from Ethiopia (right) is a member of one of the largest ethnolinguistic groups in Africa, numbering around 40million.
article_snippet: These two Dassanech people are primarily nomads from the Saharan interior of North Africa .
article_snippet: The 200,000 strong tribe live in the Omo River valley in the south of Ethiopia .