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Dating back one million years, the remarkably intact skull has been hailed as an important find by palaeoanthropologists.
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One of our ancient ancestors held on for so long that it was still around when modern humans arrived on the scene.
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An engraving found on a fossilized shell is believed to have been made over 430,000 years ago.
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A skull dating back 1.8 million years has offered new insights in to the story of human evolution.