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The famous 3.2 million-year-old relative found in Ethiopia in the 1970s, Lucy, has been the subject of a new study that has shown that our early ancestor could run upright, but not very fast – a mere average of 4.97 meters (16.3 feet) per second. Void of the long Achilles tendon and shorter leg muscle fibers present in modern-day humans, who run an average of 7.9 meters (16.3 feet) per second, Lucy had evolutionary evolved enough to run upright – a landmark development on its own.
- Lucy Stood Just 3.5 feet Tall But Towers Over Our Understanding of Human Origins
- Human Ancestors Were Already Bipeds 7-Million Years Ago
Recreating Lucy: A Digital Marvel
The study, published in Current Biology, utilized digital 3D computer simulations developed in the UK and Netherlands by researchers on the Australopithecus afarensis, who lived between 3.9 and 2.9 million years ago in East Africa. This small, comparatively diminutive hominin, walked upright and was thus the favored pick of the research team trying to understand the evolution of bipedalism in the human lineage.