Curtin, Charles B. Department of Biology, Creighton University, Omaha, Nebraska.
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The common name for approximately 1500 species of reptiles in the infraorder Gekkota (order Squamata) that are distinguished by a flattened body, a long sensitive tongue, and adhesive pads on the toes of many species. Geckos are small lizards, primarily arboreal and nocturnal, which occur in the warm regions of the world. Their body is flattened and never exceeds 35 cm (14 in.) in length. Most species have five digits, whereas some have only four; the toes often have adhesive pads to assist the animal when climbing on smooth surfaces. See also: Reptilia; Squamata
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