Spinosaurus, the only known semiaquatic dinosaur predator, joins Tyrannosaurus, Giganotosaurus and Carcharodontosaurus among the largest meat-eating dinosaurs.

According to their research, the juvenile iguanodontian named Haolong dongi had fossilized skin so detailed that individual cells are still visible. The porcupine-like spikes have never been ...

Millions of years before the Sahara became a desert, it was a vibrant ecosystem. Bordering the ancient Tethys Sea, which broke up the supercontinent Pangaea, the region was home to massive dinosaurs, ...

Spinosaurs have sometimes been portrayed as swimmers or divers, but a new species of these dinosaurs bolsters the idea that they were more like gigantic herons ...

A flexible tongue, sensitive beak and teethlike cones in the mouth may have helped Archaeopteryx generate enough energy to fly.