Podcast: Death by Amoeba, How Earth Became a Jigsaw, and Why Older Isn't Better

Can discovering how a deadly amoeba nibbles our cells to death help researchers learn how to fight it? How did plate tectonics begin on Earth? And do legendary old violins really sound better than modern fiddles? Science's Online News Editor David Grimm chats about these stories and more with Science's Sarah Crespi.

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