Researchers discovered that a 215-million-year-old reptile started life on four legs and switched to two as an adult.

A remarkable fossil discovery in India is giving scientists new clues about how some dinosaurs reproduced. Researchers have ...

For years, we suspected that Alvarezsaurids underwent a rare process of evolutionary miniaturization directly coupled to a ...

Tiny fossil teeth from Colorado are revealing new clues about the very first relatives of primates, including humans.

These newly discovered crocodyliform eggs suggest a shift toward semi-aquatic lifestyles and humid nesting sites.

Fruita’s location makes it an ideal stop for anyone traveling through western Colorado. It’s just minutes from Grand Junction and right off Interstate 70, so you can easily add it to your itinerary ...

Step into a roaring dinosaur attraction in Volo, Illinois, with moving animatronics, hands-on activities, and family-friendly ...

In a study published in the Journal of Vertebrate Paleontology, researchers Dr. Giovanna M. X. Paixão and her colleagues ...

A newly described Patagonian fossil reveals the evolutionary origins and global spread of the tiny alvarezsaur dinosaurs.

Tyrannosaurus rex may have taken far longer to grow up than scientists once thought. By analyzing growth rings in fossilized leg bones from 17 tyrannosaur specimens and using new statistical methods, ...

Each state in the United States has state symbols that come in the shape of animals, songs and fish, among many others. Most people can usually name their state animal off the top of their head, but ...

This little critter hadn’t previously been identified south of Montana, but tiny, fossilized teeth show it had traveled into Colorado by around half a million years after the dinosaurs were wiped out.