The free Prehistoric Valley 3D Animated Screensaver by Scenic Reflections lets you catch a glimpse of what life may have been like for dinosaurs in a prehistoric valley. What in amazement at the volcano as it exhales smokes and dinosaurs enjoy the life in the valley. Are those two in the background fighting? Or just playing? The free Prehistoric Valley 3D animated screensaver has everything to amaze you. Listen to the dinosaurs and imagine what it was like when they were around. And now you can optionally add your own music and sound tracks to help enhance the screensaver even further.