Field Museum scientists Pete Makovicky and Bill Simpson use a cast of one of the T. rex SUE's gastralia -- a set of bones that look like an additional set of ribs -- to show where they will be ...

If there’s one group of dinosaurs that needs better PR, it’s alvarezsaurs. They’re among the strangest dinosaurs to have ever evolved, yet outside of dinosaur die-hards, few people have ever heard of ...

An unusual dinosaur has been shown to have a skull that functioned like a fish-eating crocodile, despite looking like a dinosaur. It also possessed two huge hand claws, perhaps used as grappling hooks ...

Think dinosaurs didn’t mix things up at mealtime? Think again. Researchers studying fossilized dinosaur feces from about 75 million years ago have discovered that at least some plant-eating dinosaurs ...