Lucy, discovered by Donald C. Johanson and Tom Gray, is Our Oldest and Most Complete Human Ancestor

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The discovery of Lucy is our oldest and most complete human ancestor. She is less than 3.8 million years old hominid of Australopithecus afarensis, which was discovered in November 24, 1974 by Donald C. Johanson and Tom Gray in the Hadar region of Ethiopia.
They named her Lucy in reference to the well-known Beatles song "Lucy in the Sky with Diamonds", which played over and over as they celebrated their findings.
This uncovering of Lucy was very fascinating and answered many questions to our human evolution.The search for human ancestry has been ongoing for the past century since the publication of Charles Darwin’s “Origins of the Species”. As more evidence about the ‘branches’ of the evolutionary tree of many distinct animals and species, researchers were able to think of better hypotheses about humans’ ancestors. This scientific hard effort, involving researchers from many variety of fields from Evolutionary Biology to Paleontology. As many pieces of the puzzles were revealed, so grows the great knowledge about the history of life on our planet.
In 1972, a group of researchers led by Donald Johanson, founding director of the “Institute of Human Origins” of Arizona State University, sets out to discover a hypothesized human ancestor, Lucy, in the Hadar Formation in Ethiopia. Donald Johanson’s group hypothesized the existence of a biped human ancestor, with the great ability to walk upright like humans, which of Lucy having a relatively small cranial capacity like…