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PostPosted: 13 Apr 2010, 11:17 
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http://news.nationalgeographic.com/news ... ies-human/

Ker Than
for National Geographic News
Published April 8, 2010

Quote:
Identified via two-million-year-old fossils, a new human ancestor dubbed Australopithecus sediba may be the "key transitional species" between the apelike australopithecines—and the first Homo, or human, species, according to a new study.

"We've never seen this combination of traits in any one [early human species]," study leader Lee Berger told the journal Science, where the new study is published today.

Quote:
A. sediba, for example, had long legs and certain humanlike characteristics in its pelvis, which would have made it the first human ancestor to walk—perhaps even run—in an energy-efficient manner, the study says.

Quote:
For one thing, unlike human species but like other australopithecines, A. sediba had a very small brain. The fossil species also had long ape-like arms with primitive wrists that were well suited for climbing trees.


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