World Science: American head shapes have been changing, but why?

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In a trend that can be iden­ti­fied go­ing back to the mid-1800s, U.S. skulls have got­ten big­ger, taller and nar­rower as seen from the front, said Rich­ard and Lee Jantz, forensic an­thro­po­l­o­gists at UT. World Science reported on their findings in a recent article. The scientists al­so found that faces have be­come sig­nif­i­cantly nar­rower and higher, though this shift is less pro­nounced than those af­fect­ing the whole cra­ni­um.

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