Some 150 million years ago sauropods dramatically shaped the dinosaur ecosystem in what is now the western U.S., according to ...

Babies and very young sauropods—the long-necked, long-tailed plant-eaters that in adulthood were the largest animals to have ...

It may have been suicidal for a predator to go after a healthy adult Brachiosaurus, a behemoth weighing perhaps 60 tons that was a member of the long-necked group of dinosaurs called sauropods that ...