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

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Lucy
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 …show more content…

The joint could “lock”, suggesting the animal could walk upright. This was an important discovery showing an ancient bipedal creature. If the bones’ age was consistent with Johanson’s hypothesized “missing link”, it would serve as supporting evidence to Johanson’s theory.
Lucy’s entire skeleton was found about two and a half kilometers from the site in which the bipedal knee joint was found. The conclusion that both fossils originate from the same species is questionable, and might have been influenced by Johanson’s pre-existing biases. While only forty percent of the skeleton was found.
The scientist predict that Lucy is at least 20 years old because her wisdom teeth had fully come in. Her head looked primitive and her brain was not much bigger than a chimpanzee’s. She was an ape with a human looking body but underdeveloped skull and brain. We obviously still had a long way to come in the 3.18 million years between then and now, but Lucy already showed clear differences from the normal apes. The shape of her hip bones and her upright posture means that Lucy is closer to us than the chimpanzee. Knowing that Lucy could walk on two legs and was about 3’6’’ tall.
The habitat is predicted a mix of woodland, where they hunt for food on the ground and in trees, along with more open areas where they would have walked upright. Evidence from their teeth suggest that this hominine ate soft fruits and leaves but was also adapted to eat harder, more brittle

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