On the Trail of the Thick-Skulled Dinosaur

How do we know what dinosaurs really looked like? How do we know where to find dinosaur fossils? Or, as geologist Emily Giffin asks in “On the Trail of the Thick-Skulled Dinosaur,” how do you find something when you don’t know what you’re looking for? In answering these questions, she brings fresh focus to a well-known subject and also demonstrates the process of scientific inquiry in a spirited, informative and accessible manner.