Rana japonica (Japanese Brown Frog) is a species of amphibians in the family true frogs. They are associated with freshwater habitat. They are found in the palearctic and the indo-malayan realm.
Definition: The largest scale biogeographic division of the earth's surface based on the historic and evolutionary distribution patterns of plants and animals.
Comment: Preliminary definition. The semantics and definitions of "mediterranean", "subtropical", "tropical", "temperate", "polar", and similar climate types may be transferred to an "environmental condition" class once the semantics of this class have been established.
