Zhoukoudian was not the first discovery place of Homo erectus, but thanks to the work of Franz Weidenreich in the 1930s and 1940s, it became the prototype for the way later scientists understood this One reason was his reconstruction of the L2 skull.

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Paranthropus was a biped like today's humans, but may have used its legs a little differently. Some researchers think the species was climbing more, others point to the dynamics of a relatively wide pelvis in this

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