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New Study Says Ancient Humans Hunted Big Mammals To Extinction

New Study Says Ancient Humans Hunted Big Mammals To Extinction

NPR - Christopher Joyce

Over the past 125,000 years, the average size of mammals on the Earth has shrunk. And humans are to blame. That's the conclusion of a new study of the fossil record by paleo-biologist Felisa Smith of the University of New Mexico. Smith studied fossils going back 65 million years, when dinosaurs died …

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