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Podcast: An Arctic Mystery, the Real Dino Killer, and a Tool-Using Fish

15 July 2011 12:48 pm
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Have scientists put a controversial hypothesis for dinosaur extinction to rest? What really killed the members of the Franklin Expedition? And are new photographs proof that fish can use tools? Science's Online News Editor David Grimm chats about these stories and more with Science's Online Editor Stewart Wills.

(Listen to the full Science podcast and more podcasts.)