Every year, 100 million monarch butterflies set of on an incredible journey across North America. These beautiful creatures fly 2,000 miles to reach their remote destination: a tiny area high in the mountains of Mexico. Yet scientists are still puzzling over how the butterflies achieve this tremendous feat of endurance - and how, year after year the monarchs navigate with such hairs' breadth precision. NOVA flies along with the monarchs, visiting the spectacular locations they call home, and meeting the dangers they encounter along the way. Shot in stunning detail, The Incredible Journey of the Butterflies reveals the monarch as a scientific marvel locked in an inspiring struggle for survival.
PBS, 2009, 56 mins, Audio: English, Not Rated.
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