Ferocious Raptors Search for prey with your open windows in the background. The demo version has two Raptors while in the registered version each of four Raptors is a unique 3D design. Three of the Raptors walk across your screen as if in search of prey while one waits below gnashing teeth as the others pass. All Raptors are realistic 3D images that move with life-like motions. Dangerous and eerie background music completes the effect. http://www.sandiegoscreensavers.com/raptors2.html