Spinosaurus is a notorious mystery among paleontologists, right down to its social and behavioral habits. What we do know is that it likely spent most of its time in the water, unlike many other ...

Chicago's Field Museum on Friday unveiled a 46-foot cast of a Spinosaurus skeleton. The Spinosaurus is believed to be the largest predatory dinosaur to have existed.

Researchers in Spain have identified a new spinosaurus species that walked on two legs, feasted on fish and measured between 32 and 36 feet when it was alive. The researchers who named the newest ...

"We think Spinosaurus, one of the largest predatory animals ever to have evolved, needed extra bone strength to support its weight on its relatively short hind limbs," Sereno said.

For years, controversy has swirled around how a Cretaceous-era, sail-backed dinosaur—the giant Spinosaurus aegyptiacus—hunted its prey.Spinosaurus was among the largest predators ever to prowl the ...