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The main point of the film was that Lucy was much different than what archeologists had long assumed was the link between apes and humans. By dating volcanic ash from the layer of earth where Lucy was discovered, scientists found that she had lived approximately 3. ... Then, in Hadar in 1974, Donald Johanson found Lucy. ...
Now the terrain of Hadar is vast desert, but in Lucy’s day the landscape was entirely different. ... Lucy and her kind were not necessarily high on the totem pole in the animal kingdom. ... But Lucy had not been hunted, which is why so much of her skeleton was able to be recovered.
Although an adult, Lucy would only have stood about three and a half feet tall. What was unexpected was that it appeared that Lucy had been bipedal. The knees of apes do not fully extend and lock, but Lucy’s did; she had stood upright. ...
But the key question of brain size remained, as so little of Lucy’s skull had been found.
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