Frogs are amphibians in the order Anura, formerly referred to as Salient. Most frogs are characterized by a short body, webbed digits, protruding eyes and the absence of a tail. Frogs are widely known as exceptional jumpers, and many of the anatomical  characteristics of frogs, particularly their long, powerful legs, are adaptations to improve jumping performance. Due to their permeable skin, frogs are often semi-aquatic or inhabit humid areas, but move easily on land. They typically lay their eggs in puddles, ponds or lakes, and their larvae, called tadpoles, have gills and develop in water.