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A cast of LB1 (left) was compared to several microcephalic skulls, amongst which is that of the micr
Volvulus. A volvulus results when the small intestine twists, causing an obstruction that can lead t
This engraving by William Russell Birch shows Congress Hall (left), which was occupied by Congress f
Richmond, Virginia, lies in ruins in April 1865 at the time of Lincoln’s visit—and a few days before
Phyllis Schlafly drew much of her support from working-class women who were left vulnerable by the ...
Genetic Drift in Large and Small Populations