Callery, Sean

Highlights dark deeds from the worlds of the ancient Mayas, Aztecs, and Incas.

Highlights dark deeds from ancient and early medieval Rome, including the cruel and irrational acts of Commodus and some of the most brutal other emperors and the persecution of the early Christians.

Describes the life cycles of polar animals, and discusses the food chains that make up a food web.

Explores how eleven creatures that inhabit rivers are interconnected through a food chain, features information on each creature's life cycle, and highlights three key facts about each animal.

Describes the life cycles of rain forest animals, and discusses the food chains that make up a food web.

Describes the life cycles of marine animals, and discusses the variety of aquatic food chains.

Describes the life cycles of mountain animals, and discusses the food chains that make up a food web.

Photographs and text provide an overview of the life cycles of ten animals that live in the grasslands and explore how those animals contribute to the grasslands ecosystem.

Describes the life cycles of forest animals, and discusses the food chains that make up a food web.

Explores how eleven creatures that inhabit deserts are interconnected through a food chain, features information on each creature's life cycle, and highlights three key facts about each animal.