Amphibians are the most primitive class of land-living vertebrates, being the first vertebrate animals to inhabit the land. The class Amphibia, which comprises more than 4,700 species, is represented in South Africa by the order Anura, a group of tailless amphibians commonly referred to as frogs or toads.

Frogs have adapted to habitats ranging from mountain tops to sea level and from forests to deserts, and some are completely terrestrial whereas others are largely aquatic. South African frogs belong to 10 families and over 50% of the 115 or so species occur nowhere else. Frogs form the prey of various birds, mammals, reptiles, fish and even other frogs, and contribute to the control of insect pests and other invertebrates which they consume in large numbers.

Pilanesberg Game Reserve has over 18 frog/ toad species.