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An 80-Million-Year-Old Fossil Helps Uncover the Winding Evolutionary History</title><link>https://www.smithsonianmag.com/smart-news/how-did-some-reptiles-lose-their-limbs-to-become-snakes-an-80-million-year-old-fossil-helps-uncover-the-winding-evolutionary-history-180989203/</link><description>Researchers have long suspected that the first of these slithering creatures lived in water, on land or underground. 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Rex Fossil Could Fetch the Largest Sum of Any Dinosaur Ever Auctioned. Scientists Worry They'll Lose the Chance to Study It</title><link>https://www.smithsonianmag.com/smart-news/this-t-rex-fossil-could-fetch-the-largest-sum-of-any-dinosaur-ever-auctioned-scientists-worry-theyll-lose-the-chance-to-study-it-180989114/</link><description>Bids on "Gus" will start at $19 million, a steep price for public institutions. 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