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  • Nature

Nature | Earth Navigators | PBS

Duration: 49:09 (Full Program)
Program: Nature #1711
Broadcast Date: Apr. 22, 2000

Seasonal changes impel a wide variety of creatures, from whooper swans to monarch butterflies, to begin their epic migrations to ancient feeding, mating, and breeding grounds, sometimes covering thousands of miles and employing ingenious methods to reach their destinations.

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Post Date: June 28, 2010