Monarch Butterfly's Sun Compass Investigated in Flight Simulator

The amazing story of how Monarch butterflies navigate from Canada to Mexico is beautifully recounted in Metamorphosis, the Beauty and Design of Butterflies. "Here's a butterfly species that does something truly spectacular," Thomas Emmel says in the film. Flying over two thousand miles without an experienced leader who has made the trip before, millions of these artistically-colored flyers arrive on schedule in the same trees their grandparents or great-grandparents had wintered in the previ...