Skinks are the most diverse group of lizards with about 1200 species making up the family Scincidae. Skinks look similar to true lizards, but most species have no pronounced neck and relatively small legs. Several genera have no limbs at all, others, have only reduced limbs. The longer the digits, the more arboreal the species.
Skinks are generally carnivorous and largely eat insects, but many will also eat earthworms, millipedes, snails, slugs, isopods, other lizards, and small rodents. Some species, particularly those favored as home pets, have a more varied diet.
Skinks are found in a variety of habitats worldwide, ranging from deserts to grasslands. Often, their way of moving resembles that of snakes more than that of other lizards. Some are "sand swimmers", especially the desert species. Most skinks are diurnal and typically bask on rocks or logs during the day, and many species are good burrowers.