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anonymous

  • one year ago

Donald Johanson and Mary Leakey are famous for what? a. their studies of early writing b. discovering a prehistoric calendar c. finding skeletons of human ancestors d. studies of the Neolithic Revolution

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  1. anonymous
    • one year ago
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    @caitlinnr14

  2. jgirl128
    • one year ago
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    definitely C. "After Louis’s death in 1972, Mary became a leading scientist in her own right. She initiated a camp at Laetoli, 35 miles from Olduvai, where the soil dated to 3.59–3.77 million years old. There, in 1976, she found an astonishing set of hominine footprints preserved in volcanic ash, more evidence that hominines of that time walked upright." "Donald Johanson, an archaeologist from Case Western Reserve University in Cleveland, Ohio, found parts of a skeleton there that dated back 3.2 million years — the oldest hominine bones yet discovered. Johanson nicknamed the skeleton “Lucy,” because that night, as he and the others in camp celebrated their discovery, they listened repeatedly to the Beatles’ song “Lucy in the Sky with Diamonds.” Lucy was assumed to be female because the bones were of a small hominine, roughly 31⁄2 feet tall. Only about 20 percent of a full skeleton was found, and most of the skull was missing. Fragments suggest it was small, while the foot, leg, and pelvis bones showed that Lucy walked upright. This was important evidence that, in the human line, bipedalism came earlier than brain growth, which previously had been supposed to come first." https://www.khanacademy.org/partner-content/big-history-project/early-humans/how-ancestors-evolved/a/lucy-and-the-leakeys

  3. anonymous
    • one year ago
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    Oh good, I thought it was C but I am never sure. I have more questions, can you check them for me @jgirl128 ?

  4. jgirl128
    • one year ago
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    I can try :) just close this question and open a new one

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