Illustration by Gabriel Ugueto, courtesy the University of Wisconsin-Madison A chicken-sized dinosaur fossil is challenging the mainstream view of how and when reptiles spread to the Northern ...

Despite being creatures that lived and died long before us, dinosaurs hold a special place in our imaginations. But their huge popularity also often raises an intriguing question: How were dinosaur ...

Illustration by Gabriel Ugueto, courtesy the University of Wisconsin-Madison A chicken-sized dinosaur fossil is challenging ... Demaree is a McClatchy National Real-Time reporter covering the ...

They believed dinosaurs originated in the southern hemisphere, gradually spreading north. But fossil discovery in Wyoming is rewriting that story. Paleontologists at the University of Wisconsin ...

The location and age of the newly-described fossils suggest that dinosaurs prowled the northern regions of Pangea millions of years earlier than previously hypothesized. The findings were detailed ...