A newfound "chicken-size" dinosaur, recently unearthed in Wyoming, changes what paleontologists thought they knew about how dinosaurs spread across the globe. When you purchase through links on ...

A chicken-sized dinosaur fossil is challenging the mainstream view of how and when reptiles spread to the Northern Hemisphere, new research revealed. Until recently, many scientists believed there ...

Disney’s “Dinosaur” features Gallimimus briefly as a part of the herd seeking the nesting grounds through the desert. One of the “chicken mimics” succumbs to exhaustion and is scavenged ...

bahndooiveche and positively identified it as a dinosaur. "It was basically the size of a chicken but with a really long tail," said Lovelace in a press release. "We think of dinosaurs as these giant ...

In a study published in the Zoological Journal of the Linnean Society, researchers described a previously unknown, chicken-sized dinosaur species named Ahvaytum bahndooiveche. The description of ...

The first dinosaurs may have evolved near the equator, and not in the southwest of the supercontinent Gondwana, as ...

A chicken-sized dino, the oldest known in North America, has thrown a wrench in the widely accepted timeline of early dinosaur history.

Credit: Jeff Miller Think of a chicken with an incredibly long tail, explained Dave Lovelace, a scientist at the University of Wisconsin’s Geology Museum. Dinosaurs didn’t start as the colossal ...

The researchers also found evidence that silesaurids, long thought to be cousins of dinosaurs, might actually be ancestors of ...

A rendering of how the chicken-sized dinosaur may have looked about 230 million years ago. Illustration by Gabriel Ugueto, courtesy the University of Wisconsin-Madison A chicken-sized dinosaur ...