Barbara A Somervill

Readers will learn what it takes to succeed as a veterinarian. The book also explains the necessary educational steps, useful character traits, potential hazards, and daily job tasks related to this career. Sidebars include thought-provoking trivia. Questions in the backmatter ask for text-dependent analysis. Photos, a glossary, and additional resources are included.

Defines glaciers and approximate size and how they can alter the profile of the land. Describes the Antarctic ice sheet and how a glacier can "calve" or break away from an ice mass. Also discusses the meaning of global warming and the mathematical meanings behind these features.

Cane toads are known for their warty skin and poison glands. They were brought to Australia and other places to help control pests that were harming crops. Learn more about how the cane toad has gone from being farmer's friend to an unwanted pest.

Less than a decade ago, there were only a few pythons in the everglades. Today more than 100,000 of them are slithering around south Florida, crushing what was already a delicate ecosystem. Readers will be introduced to the concepts of invasive species and challenged to think critically about the cause, effect, and control of dangerous creatures.

The mountain gorillas of Central Africa are a critically endangered species because of poaching, hunting, habitat loss, exposure to human diseases, and war. Readers will find out more about how people are working together to save these animals through habitat conservation and education.

Explores the type of work performed by commercial fishermen and outlines the tools and techniques they use to complete their daily tasks. Discusses how to prepare for a future job in this career field and includes full-color photographs, a glossary, and further reading sources.

The grizzly bear once roamed much of western North America. In the early 1800s, as many as 50,000 grizzly bears lived in the West. As settlers pushed westward, the bears lost much of their habitat. Fewer than 1,000 grizzlies remained in the lower 48 U.S. states when the bear was listed as endangered. Read this book to learn how grizzly bears came close to extinction and find out what is being done to increase their numbers and insure their survival...

Depicts the work of actors, describes how they perform a variety of roles, and provides information about learning the skills needed in this career. Offers information about famous actors and their unique styles and includes color photos, a glossary, an index, and sources for additional information.

Asian carp have big appetites and can leap out of the water when startled. They were brought to the United States from their native Asian habitats to control algae growth on fish farms. Find out what happened when some of these big, jumping fish escaped and made their way up the Mississippi River.

At one time, the howling of gray wolves was a common sound throughout North America. Readers will learn more about these pack animals and what brought them to the edge of extinction. They will also find out more about the steps that have been taken to reintroduce gray wolves to the territories where they once roamed freely.