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Sounds Like Brain Freeze

Feb 14, 2007

People's brains just aren't evolving as fast as they used to. Lead author Hurng-Yi Wang from Taiwan's Academia Sinica and the University of Chicago reports that, based on comparative protein analysis, the evolution of genes expressed in the brain has slowed since humans split off from chimpanzees. The chimps, though, haven't experienced this  slowdown, say the authors in PLoS Biology.

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The Scan

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