Foreign Language Foreign Language

Siatta Scott Johnson (at right), who has guided NPR journalists through Liberia and its lingo, advises two girls on how best to carry bananas and bread. Michaeleen Doucleff/NPR hide caption

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Michaeleen Doucleff/NPR

An Indian schoolgirl dressed as Telugu Talli poses for the camera during a celebration in Hyderabad, home to a study that seems to show the onset of dementia is delayed for people who speak more than one language. Noah Seelam/AFP/Getty Images hide caption

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Noah Seelam/AFP/Getty Images

Chances are they already speak more languages than you: children from Papua New Guinea's Andai tribe of hunter-gatherers wait for their parents to vote in the village of Kaiam. Over 800 languages are spoken in PNG, a country of about six million people. Torsten Blackwood/AFP/Getty Images hide caption

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Torsten Blackwood/AFP/Getty Images