The evolution of hominids

There is plenty of evidence of this evolutionary process. A nearly full skeleton of a female hominid who lived approximately 3.5 million years ago was found in Ethiopia in 1974; scientists called it Lucy. The shape of its spine, leg bones, pelvis and limbs show that Lucy used to walk like we do now. The fossilised footprints of three human beings who had walked through the ash deposits of a recent volcanic eruption were discovered at Laetoli (Tanzania) in 1978. These footprints date back to between 3.6 and 3.8 million years ago and are the most ancient evidence ever found of the existence of two-legged primates.

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