Oldest known bat fossils discovered in Wyoming are a previously unknown species – NBC US NEWS

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. CNN  —  Two 52 million-year-old bat skeletons discovered in an ancient lake bed in Wyoming are the oldest bat fossils ever found — and they reveal a new species. Tim Rietbergen, an evolutionary biologist at

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