Discusses the native Americans known as the Anasazi, who migrated to southwestern Colorado in the first century A.D. and mysteriously disappeared in 1300 A.D. after constructing extensive dwellings in the cliffs of the steep canyon walls.

Two worms who are best friends have fun together as they tunnel their way through a garden. Includes facts on how worms help plants grow.

Explains how people and animals living in different parts of the world survive in hotter and colder climates using remarkable adaptive strategies and behaviors.

Color photographs and explanatory text show how a life-size dinosaur model is constructed, more information about dinosaurs and how conclusions are made from fossil remains is also presented.

Facts about plains zebras, with cut paper illustrations.

Over the past several decades, our world has been warming at a faster rate than ever before. Winters are shorter. Sea levels have risen. Territories of predators and prey have shifted. To survive in this new environment, animals everywhere have had to adapt, or face extinction. Complemented by Jamie Hogan's rich collage illustrations, A Warmer World offers young readers a clear-eyed look at the effects of climate change on animals around the world....

One hundred million years ago, the skies were filled with enormous flying reptiles. With wings spans up to nearly forty feet, pterosaurs were the dominant life form on earth. The relationship of these giants of the air to dinosaurs and to other reptiles, their varied appearance and lifestyles, their evolution and extinction, the fossil discoveries that scientists are continually making throughout the world--all are depicted in this beautifully illustrated,...

Provides information about enormous reptiles who swam the seas during the dinosaur age.

Describes animals of the African plains, forests, jungles, and deserts, and explains how each is able to adapt to its special environment.

Walking by the seashore, a child observes sand, waves, plants, and animals.