How Mammals Evolved

＂Animal evolution is a complex subject, but in this title young readers will encounter easy-to-understand explanations on how mammals went from tiny tree climbers to humans walking around today. Ancient creatures, transition animals, and modern-day mammals wander across pages of colorful images and QR codes throughout the book. DiscoverRoo is an imprint of Pop!, a division of ABDO. Aligned to Common Core standards & correlated to state standards＂--Publisher’s website.