Scientist stumbles across massive ancient tooth while surveying a San Mateo County preserve

A scientist surveying a San Mateo County creek accidentally discovered an ancient Ice Age molar while working to improve habitat for a threatened frog.

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Sep 10, 2026 - 00:07
Scientist stumbles across massive ancient tooth while surveying a San Mateo County preserve
A scientist surveying a San Mateo County creek accidentally discovered an ancient Ice Age molar while working to improve habitat for a threatened frog.
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