This document provides an overview of guinea pigs as pets. It describes guinea pigs' physical characteristics including their robust, tubular bodies covered in fur, small ears and eyes, and short legs with claws. It notes that guinea pigs are social herbivores originally from Peru that live in open spaces and use burrows for shelter. Proper care for guinea pigs as pets includes feeding them a balanced diet, providing fresh water and vitamin C, keeping their cage clean, playing with and handling them.