These exotic creatures are distant cousins of spiders. They feed on many insects that humans consider undesirable, and in their natural setting are environmentally beneficial. They also make fascinating inhabitants in a terrarium. Barron's extensive line of "Complete Pet Owner's Manuals" presents information for non-specialist animal owners and prospective owners, with facts about each animal's origins and traits, as well as advice on purchasing, housing, feeding, health care, and much more. Each book is individually written by a trainer, breeder, veterinarian, or other animal specialist. Titles in this series cover every popular breed of dog and cat, freshwater and marine fish, many bird varieties, and virtually all other animals that are kept as pets. All books are filled with handsome color photos and instructive line illustrations.