There and Back Again
Radiolab
00:00
What Is the Biggest Enigma in Bird Science?
"It's just, you know, sort of a big enigma. This is one of those mysteries that only gets more mysterious when you look at it more closely," Martin says. Over the next 40 years, Martin will find that the movement of birds and not only birds, but all kinds of animals all over the planet,. which we see happening every fall and every spring heading north, heading south. "I realized that, you know ... adults don't know anything about the world."
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