Discovery! (Lerner)

Describes the social interaction of wolves in a pack as they share the work of hunting, maintaining territory, and raising young.

Discusses the fossil remains of mammoths and attempts to answer the question of why they disappeared.

Looks at advances that have been made in decoding and understanding the human genome, discusses ways in which scientists hope to use that information to cure and prevent disease, explores some of the moral and ethical issues involved in genetic manipulation, and examines the application of such techniques to plants and animals.

Worldwide, infectious diseases are the second leading cuase of death and the leading cause of disability. Produced by microscopic organisms that enter a person's boyd, infectious diseases can create symptoms ranging from mild digestive problems to deadly bleeding and high fevers. How should you protect yourself? Discover the intriguing story behind these invisible invaders.

Discusses the growing problem of bacteria that have become resistant to antibiotics and other drugs, explaining how "superbugs" were created, what is being done to fight them, and how to protect against them.