Seeking long-lived mammals, paleontologist finds two that lasted at least 23 million year
washingtonpost.com
In all of Earth’s history, which species of mammal survived for the longest time?
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The Utah Geological Survey (UGS) is a division of the Utah Department of Natural Resources. Several specialized programs comprise the UGS: Data Management, Energy & Minerals, Geologic Hazards, Geologic Information & Outreach, Geologic Mapping, Groundwater & Wetlands, and Paleontology.