Catch Spinosaurus as it prowls overhead at the Field Museum. This fish-eating dinosaur lived during the Cretaceous Period, about 95 million years ago. Spinosaurus swam in rivers thanks to its ...

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 ...