With revised illustrations reflecting our new understanding of dinosaurs, this updated Science Reader is as scientifically accurate today--and as easy to read--as when it was first published in 1991. An ideal introduction to some of the most fascinating babies of all time, this Step 2 book is perfect for young dinosaur fans who can read with help. The hatching of eggs, dinosaur parenting, and the hazards faced by prehistoric young'uns are all here in this accessible look at a perennially popular subject.