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b'Archaeologists continue to hunt for the city of Atlantis, even though it may never have existed. But, what if it did? Its discovery would change ancient history. Sometimes when we dig around in the past, we can change our understanding of how we got to where we are.\\n\\nWe thought we had wrapped up the death of the dinosaurs: blame it on an asteroid. But evidence unearthed in Antarctica and elsewhere suggests the rock from space wasn\\u2019t the sole culprit.\\n\\nAlso, digging into our genetic past can turn up surprising \\u2013 and sometimes uncomfortable truths \\u2013 from ancestral origins to genes that code for disease. But do we always want to know?\\n\\n Guests:\\n \\u2022\\xa0\\xa0Mark Adams \\u2013 author, Meet Me in Atlantis: My Obsessive Quest to Find the Sunken City \\n\\u2022\\xa0\\xa0David Morrison \\u2013 Senior scientist, NASA Ames Research Center\\n\\u2022\\xa0\\xa0Peter Ward \\u2013 Paleontologist, University of Washington, author of A New History of Life: The Radical New Discoveries about the Origins and Evolution of Life on Earth \\n\\u2022\\xa0\\xa0Christine Kenneally \\u2013 Journalist and author of The Invisible History of the Human Race: How DNA and History Shape Our Identities and Our Futures \\nLearn more about your ad choices. Visit megaphone.fm/adchoices'