The Neanderthals are a puzzle, because they appear to have lived alongside modern humans for a very long time. Their remains are found throughout Europe and the Middle East, dating from between 100,000 and 35,000 years ago. The Neanderthals were mere primitive than humans because they still had a massive jaw and bony brows, but they used tools and buried their dead. Some people think that they were wiped out by modem humans. It has even been suggested that some may still survive, giving rise to accounts of the Abominable Snowman of the Himalayas.
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