The dinosaur detectives of real-life Jurassic parks

Dinosaur tracks can teach us more about the day-to-day behavior of creatures like T. rex or the Stegosaurus than their skeletons ever could, says paleontologist Martin Lockley. From a "dinosaur's lover's lane" in Colorado to the rocky shores of South Korea, Lockley explores what we can learn from the traces of some of the most impressive creatures ever to walk the Earth.