Colorado Dig Offers Insight on the Rise of Mammals, Post-Extinction Event

Most professional and amateur paleontologists had written off the Corral Bluffs in Colorado Springs as a site where everything that could be found had been found. Then vertebrate paleontologist Tyler Lyson had an idea: Instead of looking for bones, he started looking for concretion – minerals known to form around bones.

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States Fight Trump Administration Favors to Oil, Gas & Coal

California and New Mexico sued the Department of the Interior on Wednesday for postponing enforcement of rules on royalty payments for natural resources extracted from public lands, including closing a loophole that let coal companies sell coal to their own subsidiaries at below market value, then inflate the price at resale.

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