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who lived in Europe and became extinct 30,000-40,000 years ago |
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as researchers studying human origins debated this question for decades |
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which are muscular and robust, with a brain similar to ours in size |
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while the relationship between humans and Neanderthals may best be described as sister species |
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despite the fact that they had hands as nimbleas those of present-day humans, with a thumband fingers |