The Carcharodontosaurus, a massive predator from the Early to Mid-Cretaceous period, roamed the Earth millions of years before the Tyrannosaurus rex. It was one of the largest carnivorous dinosaurs, ...

Scientists have discovered fossilized shark teeth in the Midwest, a region far from any ocean. How did these ancient marine predators end up in America’s heartland? This discovery could reveal secrets ...

Learn why some dinosaurs had air sacs in their vertebrae and how it relates to modern day birds.