This Week in PNAS

Editor's Note: Some of the articles described below are not yet available at the PNAS site, but they are scheduled to be posted some time this week.

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This Week in PNAS

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This Week in PNAS

In Science this week: gene linked to expansion of the human neocortex, and more.

The National Institute of General Medical Sciences director says changes the agency made have allow it to boost success rates.

Ancient DNA indicates Stone Age, hunter-gather inhabitants of Britain imported wheat.

Joel Achenbach explores at National Geographic why people find science difficult to believe.