Home of the potato

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On Thanksgiving Day, we want you to ponder the origins of the potatoes in your holiday meal. No, we’re not interested in where Aunt Gladys or Cousin Mike picked up those potatoes to mash and bring over to your feast. For today’s Geo Quiz we want to know where the potato was first grown for food. Download MP3

• Audio slideshow: Saving native potatoes
• Photo gallery: Andean potato varieties
• Geo Quiz archive