In an exuberant and clever introduction to math (Publishers Weekly), Duke employs a crowd of ten cavorting guinea pigs and tons of fun. Full color.

The authoritative information and advice you need, illustrated throughout with full-color photographs--now revised and redesigned to be even more reader-friendly! * An illustrated look at colors and breeds * The story of how guinea pigs were domesticated * Advice on selecting a guinea pig * Pointers on feeding, grooming, and health * Tips on understanding guinea pig behavior * Fun activities to enjoy with your guinea pig

A tale of twenty adventurous guinea pigs on sea and land illustrates the process of subtraction as their numbers dwindle.

In this hilarious adventure for elementary school readers, a team of lovable, fuzzy guinea pigs gets online to solve their mysteries. Fuzzy the guinea pig is a great friend to have--he's always cheerful, he cooks like a pro (his specialty is ketchup and dish soap), and he loves to surf the web. Fuzzy's stylish hutch-mate Coco is his best friend, though even she can't understand his fascination with computers. When Fuzzy goes missing, though, Coco is forced to get online for answers. On the social site Micespace she learns that her friend could be in terrible danger, so Coco assembles an extraction team to get him back: Terry, a technology whiz whose computer skills are second to none; Banoffee, a mother of fourteen with the organizational and motivational powers to match; and Eduardo, the heroic (and very handsome) Peruvian freedom fighter. Will Coco and her guinea pig commandos find a way to rescue Fuzzy and get back home alive?

Sasspants, a guinea pig, reluctantly agrees to act as a private investigator when Hamisher the hamster begs for her help in discovering who is stealing sandwiches from the pet shop's befuddled owner.

A cavorting group of guinea pigs share a fun-filled, pear-shaped party of games, snacks and squealing friendship.

In the years since the third edition of this indispensable reference was published, a great deal has been learned about the nutritional requirements of common laboratory species: rat, mouse, guinea pig, hamster, gerbil, and vole. The Fourth Revised Edition presents the current expert understanding of the lipid, carbohydrate, protein, mineral, vitamin, and other nutritional needs of these animals. The extensive use of tables provides easy access to a wealth of comprehensive data and resource information. The volume also provides an expanded background discussion of general dietary considerations. In addition to a more user-friendly organization, new features in this edition include: A significantly expanded section on dietary requirements for rats, reporting substantial new findings. A new section on nutrients that are not required but that may produce beneficial results. New information on growth and reproductive performance among the most commonly used strains of rats and mice and on several hamster species. An expanded discussion of diet formulation and preparationâ€"including sample diets of both purified and natural ingredients. New information on mineral deficiency and toxicity, including warning signs. This authoritative resource will be important to researchers, laboratory technicians, and manufacturers of laboratory animal feed.