Dusk, the world's first bat, must lead his colony to safety in a time of changing species.

Geronimo Stilton's ancestor, Geronimo Stiltonoot, searches for Tiger Khan's missing flag to prevent chaos during the annual cavemouse sports competition.

Could dinosaurs swim? How big were their teeth? What color was their skin? You've got questions about dinosaurs, and Kids' Questions has answers!

"This comprehensive dinosaur encyclopedia introduces the four main categories of dinosaurs (carnivores, herbivores, pterosaurs, and aquatic) and provides detailed descriptions of the key species from each group. Beautiful illustrations are accompanied by a detailed overview, statistics, fascinating facts, and infographics for each dinosaur. The book also features the extinction of dinosaurs as well as the causes and a clear timeline showing when each...

The magic tree house transports Jack and Annie on a mission to the Ice Age where they encounter Cro-Magnons, cave bears, sabertooth tigers, and woolly mammoths.

Introduces some animals that lived long ago, such as the giant sloth, camelus, huge roaches, and uintatherium.

This book tells the story of Spinosaurus, a dinosaur with large jaws, sharp teeth, and a huge sail on its back that stood six feet tall. Around 40 feet long, it was one of the largest meat eaters. Spinosaurus lived during the late Cretaceous period around 95 million years ago.

Offers a close look at the clues left behind by early ancestors and dinosaurs in the form of rocks and fossils. Also explains how fossils form, how the dinosaurs lived and died, why and how the continents drifted, and how archaeologists and geologists study the Earth's past.

Text and photography of models describe a variety of prehistoric animals.

From the first living cells to fearsome dinosaurs and giant mammals, take a journey through prehistory to find out about the supersized, the scary, and the downright bizarre animals and plants that inhabited Earth in ancient times. Broken down by animal or plant type, there are profiles on more than 40 key species. With famous favorites such as mighty Tyrannosaurus and huge woolly mammoths, as well as lesser-known organisms, including five-eyed Opabinia...