Journey backwards to prehistoric Earth, starting in the present and zipping back 100s of millions of years, stopping in frozen ice ages, lush prehistoric rainforests, and ancient oceans along the way. Bold illustrations allow children to discover fascinating creatures, including hungry dinosaurs and enormous mammoths. Infographics reveal the secrets of Earth's geology and environments, linking ancient creatures and places to our own time and to some of the major issues facing societies right now, such as climate change, deforestation, and extinction events.

"This is the perfect book for dinosaur lovers ... The perfect book for curious kids who love finding out what life was like in prehistoric times." 

"Ideal for all young minds, a beautifully crafted book ... Also a great book for schools, libraries and reluctant readers ... Engaging and insightful."

Kathleen Weidner Zoehfeld is the award-winning author of more than 70 books for children. When she is not reading, researching, writing, or editing she loves to spend her free time exploring, doing fieldwork, and preparing and curating fossils for her local natural history museums. She lives in Berkeley, CA.

Julius Csotonyi began illustrating dinosaurs seriously in 1998. Since then he has produced work for 25 publishers and museum exhibits, with a client list that includes National Geographic; Scholastic Inc; the Royal Tyrrell Museum; and the Houston Museum of Natural Science.