Describes different kinds of trackways--sets of dinosaur prints--and what they tell scientists about dinosaurs, and discusses differences in the footprints of plant and meat eaters.
Tells how footprints made by the dinosaurs have been preserved, looks at the tracks made by different dinosaurs, and explains what these impressions tell scientists about the animals that made them.
Something has been making tracks in Oscar's backyard and eating his mother's red flowers, so Oscar--who thinks it is a bear--devises a plan with his friends to get a clearer set of prints and compare them to pictures in a library book.