Spinosaurus was one of the biggest predators of its time, but was it big enough to take down the Tyrannosaurus rex? Adding to the size of Spinosaurus was its nearly 5-foot sail that ran along the ...

A century ago, scientists unearthed fossils of a gigantic carnivorous dinosaur bigger than Tyrannosaurus rex in the Sahara desert, but until recently, paleontologists thought the fearsome beast was ...

The largest predatory dinosaur to ever walk on Earth sported a massive sail that rose from its back, but it turns out this imposing creature would have made for a very slow and awkward swimmer, ...

Scientists today unveiled what appears to be the first truly semiaquatic dinosaur, Spinosaurus aegyptiacus. New fossils of the massive Cretaceous-era predator reveal it adapted to life in the water ...

After millions of years, six incredible dinosaurs are coming back to life. In “Walking with Dinosaurs” on PBS, paleontologists discover the lives behind the fossils, using the latest scientific ...