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Julius Nyerere (1922-1999), president of Tanzania from 1964 until 1985, with British paleoanthropologist Mary Leakey (1913-1996) at a skull presentation ceremony. Leakey discovered this early hominin skull, nicknamed Nutcracker Man on account of its large molars, in 1959 in Olduvai Gorge, Tanzania, Africa. Then categorized as Zinjanthropus boisei (and also Australopithecus boisei), it is now classified as Paranthropus boisei.
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