Millions of different kinds of animals live on our planet. Some are scaly and some have fur. Some fly and others swim. And some are so tiny you can barely see them, while others are bigger than you can even imagine. This series highlights the tiniest and most massive creatures in a variety of animal families. Each book features engaging infographics, vibrant photos, and fun facts that offer readers a fresh look at Earth's largest and smallest animals. Critical-thinking questions and an engaging activity help bring young scientists even closer to the subject matter. Additional features to help readers connect with the text include a table of contents, phonetic glossary, informative captions and sidebars, information about the author, an index, and sources for additional research.