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Human evolution: Run Lucy, run! Endurance running is thought as critical for the evolutionary success of hominins. A new study analysing the running skills of the famous ‘Lucy’ — Australopithecus afarensis — finds that they performed poorer than modern humans, suggesting that key features of the human body plan evolved specifically to improve running performance. https://www.cell.com/current-biology/abstract/S0960-9822(24)01585-9