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October: Fall Migration Begins!
As days grow shorter and northern waters begin to freeze, gray whale head for Mexico, thousands of miles to the south. More....

Gray whale flukes as it dives at sunset

  Kate Wynne
  Gray whales make one of the longest migrations of any mammal on earth. Every year they swim over 10,000 miles roundtrip between Mexico's nursery lagoons and feeding grounds in the Arctic. The changing seasons drive the endless travels. Glimpse into the mysterious world of these gentle giants. What can gray whales teach us about survival?