Their species name is well known, but until recently we’ve understood very little for certain about Homo habilis. Columnist ...

The poodle-sized reptile that lived over 200 million years ago was among creatures that had features similar to dinosaurs it ...

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

He also noted that features such as bipedalism, toothless beaks, hollow bones, and large eye sockets are typically associated ...

Learn how fossils from Arizona’s Petrified Forest National Park revealed that a Late Triassic crocodile relative may have ...

A "peculiar" ancient relative of the crocodile which experts believe began life on four legs before, in adulthood, it learned how to walk on just two has been revealed in a new study. Named ...

If you thought that crocodiles were menacing enough, be glad that you didn’t live in Arizona some 225–201 million years ...

Researchers believe these creatures started out on four legs and later began walking on two legs as they grew.

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

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 ...

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

A near-complete fossil from Patagonia has finally cracked open the mysterious evolutionary history of one of prehistory's strangest dinosaur groups ...