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Life in the ancient Arctic: Tiny teeth of newly discovered species suggest it was a cradle of mammalian evolution
- June 2, 2026 at 7:40 PM
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A fossil mammal tooth smaller than a grain of rice does not announce itself loudly. It must be hard won from sediment and stone. Then, under a microscope, it reveals itself—no longer just a speck of blackness but a surface of cusps, ridges, and worn edges.
Originally published at Phys.org