TRACKING DINOSAURS -- Stephanie Drumheller, a student enrolled in a UW field geology class from the University of Tennessee, uses a life-sized reconstruction of a small meat-eating dinosaur to demonstrate how the two-legged creature walked across a Wyoming tidal flat 165 millions years ago. The UW Geological Museum is using the reconstructions in studying thousands of tracks at the Red Gulch Dinosaur Tracksite in northern Wyoming. (UW Geological Museum Photo)