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Earth Navigators

  • Aired: 04/23/2000
  • 49:09
  • Rating: NR
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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Earth Navigators
Seasonal changes impel a wide variety of creatures to begin their epic migrations.
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