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GREG CARR: I flew over Gorongosa. I'm looking down, and it's magnificent. There's a great lake in the center of the ecosystem. There's rivers. There's a mountain with a rainforest. ...

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ALVARADO: Imagine that somebody came and told you that there were animals whose heads could be decapitated, and that, in the span of a short period of time, these heads would begin to grow again from ...

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[Jennifer Doudna:] Science is a serendipitous endeavor. We're exploring nature and trying our best to get at the truth. And every now and then, we're surprised. [Ethan Bier:] When I first hear...

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Steve: Secretary of Energy. Agre: That's right, Secretary of Energy, Nobel Laureate; John Holdren, presidential science advisor; Harold Varmus, Eric Lander of the President's Commit...

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Steve: You seriously considered a Senate run, a United States Senate run. Agre: Well, I was serious. I'm not sure everybody else was serious. This was the Minnesota Senate seat occu...

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Steve: But in that research you found that because you were very interdisciplinary you've talked to other people… Agre: It's called attention deficit. Steve: But you found...

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[NARRATOR:] A patient with cystic fibrosis is susceptible to infections of the lungs. This is due to a mutation that affects a protein on the surface of lung cells. Many different mutations ca...

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Steve: First up, Peter Agre. He currently heads up the Malaria Research Institute at Johns Hopkins Bloomberg School of Public Health, and he won the Nobel for his discovery of the systems tha...