A unique amphibian species endemic to Japan, characterized by its distinctive wrinkled skin texture and adaptation to terrestrial and aquatic environments within East Asian ecosystems.
Native to Japan, primarily inhabiting forest edges, grasslands, and rocky areas near streams and humid mountainous regions with elevations between 0-1,500 meters above sea level.
Plays a critical role in controlling insect populations and serving as a prey species for predators, contributing to the ecological balance of Japanese forest and stream ecosystems.