Well-organized presentations highlight the key differences between similar types of animals. Separate six-page chapters introduce relevant features and behaviors of each creature, like the hare’s long legs and the fish-carrying abilities of a puffin. Closing chapters point out the contrasting qualities as well as similarities, while a final spread presents opposing photographs of each animal with captions to visually highlight the differences. Full-page images on each spread usually do a good job of depicting the relevant information from the text. While some featured pairs (such as lizards and salamanders) have more pronounced differences than other similar animals (like llamas and alpacas), the text and pictures still effectively convey information. The complexities of animal classification are appropriately used only when needed for clarity. VERDICT Clear and accessible introductions with consistent focus on the series topic.

Is that a llama or an alpaca? An alligator or a crocodile? The animal kingdom is full of creatures of all shapes and sizes, but occasionally there will be two that are seemingly identical. Each individual title in this twelve book set breaks down the similarities and differences between two animals that are commonly confused. Vivid images give young readers ages 5-8 a close look at each animal, highlighting the differences described in the text. Additional features include a side-by-side comparison of the animals, an activity encouraging readers to demonstrate their knowledge, a phonetic glossary, sources for further research, an introduction to the author, and an index. Enhanced with the inclusion of a phonetic glossary, sources for additional research, thematically relevant web sites, and activities for further learning, and unreservedly recommended for both elementary school and community library Pets/Wildlife collections, it should be noted that this outstanding series is comprised of: Alligators and Crocodiles; Butterflies and Moths; Dolphins and Porpoises; Hares and Rabbits; Leopards and Cheetahs; Lizards and Salamanders; Llamas and Alpacas; Puffins and Penguins; Spiders and Daddy Long Legs; Toads and Frogs; Turtles and Tortoises; Wasps and Bees.