Dinosaur Footprints: Tracks Tell Prehistoric Secrets

Footprints impressed on the Earth millions of years ago are energizing the field of dinosaur paleontology which until recently has mostly relied on piles of old bones dug up from ancient sediments.

“Of course, there is much to be learned from a corpse, even one that has been dead for millions of years, but there is a limit after which you leave science and are left with speculation,” said Rich McCrea, a paleontologist at the University of Alberta in Canada.