Researchers found fossil teeth of a tiny shrew-like animal that lived in freezing temperatures. AdvertisementAdvertisementShe and her colleagues described the S. mikros based on its teeth in the Journal of Systematic Palaeontology in August. "It is kind of interesting to imagine all these great big dinosaurs marching around" alongside the shrew-like animal, Eberle told Insider. The S. mikros' teeth were significantly different from its near relatives to seem like a new species. Though tiny, the S. mikros teeth are detailed enough to designate the animal as a new species.

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Persons: would've, Jaelyn Eberle, Eberle, they're, mikros Organizations: Service, University of Colorado, Palaeontology Locations: what's, Alaska, Wall, Silicon, Boulder, Eberle et