Rabbits are small mammals in the family Leporidae, found in many parts of the world. They are sometimes affectionately known as bunnies, especially by children. There are seven different genera in the family classified as rabbits, including the European Rabbit (Oryctolagus cuniculus), cottontail rabbits (genus Sylvilagus; 13 species), and the Amami Rabbit (Pentalagus furnessi, an endangered species on Amami Oshima, Japan). There are many other species of rabbit, and these, along with cottontails, pikas and hares make up the Order Lagomorpha.

Provided they are well cared for, rabbits make friendly and playful pets. They are widely kept throughout the world, both indoors and out. Rabbits kept indoors are typically healthier and more social than rabbits kept outdoors. Housed indoors and provided with adequate damage-proofing (especially of electrical cables), rabbits are relatively safe from predators, disease, and temperature extremes. Rabbits kept outdoors must be provided with shelter that is heated in winter and shaded in summer. Domesticated rabbits are most comfortable in temperatures between 10 to 21 degrees Celsius (50 to 70 degrees Fahrenheit), and cannot endure temperatures above 32 degrees Celsius (90 degrees Fahrenheit). Veterinarians specializing in rabbits recommend a diet consisting of water, a small amount of commercial pellets and unlimited hay daily. Other organic vegetables, such as carrots, are recommended as dietary supplements, but light greens, such as iceberg lettuce, can cause carbon dioxide gas bubbles in their dietary tracts that can lead to their early death.