One of the three living orders of class Amphibia, encompassing the frogs and toads. Anurans differ most obviously from salamanders (order Caudata) in lacking a tail. Usually, frogs and toads have long hindlimbs adapted for the hopping locomotion characteristic of members of the order. There can be no confusion of anurans with the limbless caecilians, members of the third order of amphibians, Apoda.