The Ancient Roots of the 1%
Science

Don't blame farming. Inequality got its start among resource-rich hunter-gatherers
The National Institutes of Health announced that it will require scientists to test new drugs on both male and female animals. Until now, most early trials have been conducted on males. Judy Woodruff joins Dr. Janine Clayton of National Institutes of Health and Phyllis Greenberger of Society for Women's Health Research to discuss the past problems driving the decision.
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