130 million years ago, during the Early Cretaceous Period, it was the heyday of the dinosaurs. The largest animal of all time - the Brachiosaurus - was one of them. This sauropod is known for its extremely long neck, its tiny head, and its large forelegs. This screen saver brings you right up close to the 80-ton colossus. Theres an entire group of these long-necked herbivores roaming in a prehistoric swamp. You can almost feel the Earth shaking under their gigantic feet. Despite their significantly smaller size, the Velociraptors arent phased by the presence of the Brachiosauri at all. These extremely fast predators use the swamp to refresh themselves with a drink. Jump back into prehistoric times.