A 12-million-year-old fossil of a prehistoric "terror bird" discovered in South America might represent the largest known member of its kind found to date, a study ...

Millions of years ago, long-legged, big-beaked, meat-eating “terror birds” stalked the Americas. The imposing creatures ruled the roost as top predators of their ...

When most people think of dinosaurs, they picture ferocious giants — the towering Tyrannosaurus rex or the armored ...

Skeleton of the terror bird Titanis walleri at the Florida Museum of Natural History. (Amanda via Wikimedia Commons / Creative Commons Attribution 2.0 Generic) (CN ...

A 90%-complete "terror bird" skeleton found on an Argentinean beach suggests these big-beaked predators had good low-frequency hearing and deep voices. It is the most ...

When you picture a dinosaur, what does it look like? Maybe you think of four-legged herbivores like Apatosaurus or Triceratops. Maybe you imagine large armored dinosaurs like Ankylosaurus or ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Millions of years ...

When you picture a dinosaur, what does it look like? For Jingmai O'Connor, paleobiologist and associate curator of reptiles at the Field Museum of... Birds are dinosaurs. Here's how scientists know ...