科學家在肯亞西南部的內楊加遺址發掘出超過300件石器(照片攝於2014年,早於發掘日期)。PHOTOGRAPH BY T.W. PLUMMER, HOMA PENINSULA PALEOANTHROPOLOGY PROJECT
科學家發現兩顆傍人的臼齒,他們是人族成員,但並非現代人的直系親戚。PHOTOGRAPH BY S. E. BAILEY, HOMA PENINSULA PALEOANTHROPOLOGY
2016年於內楊加遺址發現的奧都萬打製石器。PHOTOGRAPH BY T.W. PLUMMER, J.S. OLIVER, AND E. M. FINESTONE, HOMA PENINSULA PALEOANTHROPOLOGY PROJECT
左側的較大石塊是奧都萬石器的原料。人族從這塊核心石材上敲下銳利的石片以用作工具。PHOTOGRAPH BY T.W. PLUMMER, J.S. OLIVER, AND E. M. FINESTONE, HOMA PENINSULA PALEOANTHROPOLOGY PROJECT
學者在內楊加遺址的河馬骨骸化石堆中找到奧都萬石器。PHOTOGRAPH BY T.W. PLUMMER, HOMA PENINSULA PALEOANTHROPOLOGY PROJECT
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