Richard Spilsbury

Discusses the plight of American alligators and why they are near extinction, as well as some of the ways humans can help.

Describes the world of plants and the various parts of specific plants, such as flower, seed, roots, trunk, and more.

Multiple sclerosis, a progressive autoimmune disorder that affects the central nervous system, usually develops between the ages of twenty and fifty. This guide to multiple sclerosis describes the difference between the four types of the disease and how sufferers can manage their symptoms through medications such as corticosteroids. Though scientists are unsure what causes MS or how to prevent it from flaring up, readers will learn about new research...

Cystic fibrosis is a genetic metabolic disorder that affects the respiratory and digestive systems. Although the mortality rate for infants and children with cystic fibrosis used to be very high, more than half of all patients with cystic fibrosis now sur

Readers of this informative text will find that recently, doctors have come to understand five main types of bipolar disorder as well as a spectrum of issues that share some symptoms with it. Emotional triggers, stress, trauma, and even seasons can cause

Look inside a burrow and discover a world of inhabitants! A close look at this microhabitat reveals an unbelievable variety of organisms. Vibrant photographs and detailed illustrations combine to make these books informative and engaging. A visual table of contents helps readers navigate the text, and informative labels make the photographs valuable sources of information.

Including fact boxes and Web sites, this book describes the inner workings of an organized pack of wolves that depends on each other for food, shelter, and safety.

Traces the history of television's invention from its beginning to the present day.