The questions of how humankind came to be, and whether we are alone in the universe, have captured imaginations for millennia ...

Paleolithic hunters built mammoth traps in what is now Mexico some 14,700 years ago. An unknown sea creature left footprints in sand some 550 million years ago, making them the oldest known footprints ...

Dive into deep time to discover how fossils form, the ocean's surprising origins, and more. What do fossilized leaves, an asteroid, and Florida sinkholes have in common? Dr. Kirk Johnson is Sant ...

The Museum will be closed until January 2026. Special access requests will be considered on a case-by-case basis. Please email cumuseum@colorado.edu for more information.

For many thousands of years, the fossilized tree resin known as amber has entranced jewelry makers and inspired the scientific imagination. For the past 200 years especially, paleontologists around ...

Why do some ancient animals become fossils while others disappear without a trace? A new study reveals that part of the answer lies in the body itself. The research shows that an animal's size and ...

Colombian researcher María Camila Vallejo-Pareja with a frog from Wyoming seen in the field looking for microvertebrate fossils. Colombian researcher María Camila Vallejo-Pareja is using fossil frogs ...

Sometimes science can be a messy endeavor—not to mention "disgusting and smelly." That's how British researchers described their experiments monitoring dead sea bass carcasses as they rotted over the ...