An argument over whether fossils from several small dinosaurs represent a juvenile Tyrannosaurus rex or smaller adults of a ...

"For the first time, we have a complete, detailed picture of a large dinosaur that we are really convinced of." ...

Maybe that black cat that crossed your path wasn’t so bad after all. For the dinosaurs, an extinction-causing asteroid derailed what seemed to be a pretty good run. “It’s all just bad luck,” said New ...

Fossils from New Mexico change how we look at dinosaur history.

A $6,400 bronze sculpture featuring bison by famous Wyoming artist Chris Navarro a placed in downtown Cheyenne in memory of a ...