Describes the process of hibernation and the various ways in which different animals use this process to survive in harsh climates.

A simple presentation of the migratory habits of such animals as geese, eels, frogs and toads, and more.

Offers a brief introduction to the history, techniques, equipment, and rules of wrestling, a sport that began thousands of years ago and was part of the first Olympic games.

This book introduces the techniques, rules, equipment, and safety requirements of football.

This book describes the basic skills, moves, competition, and important safety information for the sport of cheerleading.

Offers a brief introduction to the history, techniques, equipment, and rules of skiing.

Introduces the techniques, equipment, rules, and safety requirements of baseball.

An illustrated description of the life cycles of sharks.