Smithsonian to open fossil exhibit linking prehistoric life to present

A new exhibit at the Smithsonian Museum of Natural History in Washington will open to the public on Saturday, showcasing 3.7 billion years of life on Earth, highlighting the connections among ecosystems, climate, geological forces and evolution. Kirk Johnson, the director of Smithsonian National Museum of Natural History, and Kay Behrensemeyer, the exhibit's research curator, talk about what makes this exhibit unique. Rough Cut (no reporter narration).

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