Scientists document over 16,000 footprints in the world’s most extensive dinosaur tracksite

By Mindy Weisberger, CNN (CNN) — A high-traffic “dinosaur freeway” may have once stretched across a shoreline in what is now Bolivia. Traveling along this busy route were theropods — three-toed, bipedal meat-eating dinosaurs, which left behind thousands of fossil footprints. Paleontologists have now described their tracks for the first time, offering a rare glimpse