Many reptiles, including garter snakes, crocodiles, and turtles, find strength in numbers. Some reptiles form parent-offspring groups to protect their young from predators. Others come together to mate or stay warm during cold weather. Reptile Groups explores how and why different reptile species form groups. Easy-to-read text, vivid images, and helpful back matter give readers a clear look at this subject. Features include a table of contents, infographics, a glossary, additional resources, and an index. Aligned to Common Core Standards and correlated to state standards. Core Library is an imprint of Abdo Publishing, a division of ABDO.