A new study challenges the notion that anatomically modern humans began inhabiting rainforest habitats just 70,000 years ago.

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“Bipedalism came first, changes in tooth shape and the reductions of the canines happened before smaller molar teeth evolved, and large brains came last. Darwin was wrong.” A hundred years ...

Motor neurons project from the central nervous system to innervate muscle cells to either directly or indirectly control their activity. Contact between a motor neuron and muscle cell is usually ...