Dinosaurs Are DifferentBy: Aliki Illustrator: Aliki Series: Let's Read and Find Out Science 2 Read and find out about the different groups of dinosaurs in this colorfully illustrated nonfiction picture book. Today scientists have divided dinosaurs into separate orders according to their special characteristics. Aliki's clear and appealing science book for early elementary age kids, both at home and in the classroom, clearly shows how dinosaurs are different. You can learn a