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Video: When Earth Was Warmer than We Have Ever Known
Close your eyes and picture a vivid green, lush rain forest that’s teeming with life. If I asked you where you imagined you were, your answer would probably be something like the Amazon or
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Fossil Finds and Penguin Packs: Final Frontiers Still Found on Earth
When you look at the immense footprints humans have left on this planet, it might lead you to conclude that we’ve trod, explored and exploited almost every inch of it; that there is nothing
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On the Loss of Passenger Pigeons and Parks
One hundred years ago this year, the last passenger pigeon on Earth died in the Cincinnati Zoo. A female named Martha, she has now become an icon for species extinction. It’s hard to believe
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Choosing the Sea
Two very old whales are telling us a fascinating story. They are fossils—a male and a pregnant female—that were discovered in Pakistan in 2000 and 2004. Researchers say that these 47.5-million-year-old cetaceans are beginning
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