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It's Okay to Be Smart
Using Gene Editing To Repaint Butterfly Wings
Season 7
Episode 13
Butterfly metamorphosis is still a bit of a mystery. What happens inside a chrysalis to turn a caterpillar into a beautifully painted butterfly? Does it really turn to soup? Joe Hanson visited Dr. Arnaud Martin, who uses the CRISPR genetic modification technology to learn about how genes build bodies.
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I went to NASA in Houston to talk to astronaut Don Pettit.
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Here’s a rundown of a few of the human body’s biggest evolutionary fails!
8:51
Why are trees and other plants green? The answer is full of surprises.
