Massive Ice Age-era mastodon tooth found in California creek

A scientist conducting a field survey at a Midpeninsula Regional Open Space District preserve in San Mateo County discovered a massive, intact mastodon tooth. Initially appearing as a strange rock in a Bay Area creek, the fossilized remain dates back to the Ice Age. Officials announced the rare find in a news release, highlighting the significance of the discovery within the California region, where the ancient tooth was found during routine scientific work in the creek.