Two Mississippi teens went to a creek to cool off and stumbled across a jaw of a mastodon, an animal that went extinct more ...

Proteins also were extracted from a fragment of a tooth of an extinct rhino unearthed at a site called Haughton Crater in Nunavut, Canada's northernmost territory, that was up to 24 million years old.

A 6-year-old boy found a mastodon tooth while on a family walk in Michigan. DETROIT, Mich. -- A 6-year-old boy noticed something on the ground while on a family walk in Michigan last month.

Ancient rhino tooth. Credit: University of York Scientists have shed new light on the rhino family tree after recovering a protein sequence from a fossilized tooth from more than 20 million years ago.

Proteins from an ancient rhino tooth unearthed in the Canadian Arctic have allowed scientists to look much deeper into the past than ever before. Dinosaur proteins could be next.

The fossil was found on an island in Canada’s High Arctic region in 1986 and stored in an Ottawa museum. A 2024 preprint attributed it to a new, extinct rhino species called Epiaceratherium itjilik.

Ancient proteins previously have been found in the teeth of some extinct species in the human evolutionary lineage, called hominins. The Turkana region has yielded important hominin fossils.

Scientists have shed new light on the rhino family tree after recovering a protein sequence from a fossilized tooth from more than 20 million years ago. The recovered protein sequences allowed ...