Dinosaurs may have been gigantic creatures, but “every giant was once a baby.” This captivating narrative details various dinosaurs’ beginnings as babies, sometimes no larger than a golf ball or a loaf of French bread. Author/illustrator Lita Judge, who has a background in paleobotany, uses comparisons—such as the way dinosaurs lived in herds like modern-day caribou—to help readers understand dinosaur behavior. Using words such as “perhaps,” “maybe,” “might,” and “probably,” Judge carefully clarifies when she is theorizing and when she is basing something on fact. Colorful illustrations with ample white space accompany a text in which readers are encouraged to explore and speculate, much like scientists, about how dinosaurs might have behaved long ago. (Ages 5–9)