This article by Lisa Vogt, a Washington-born and Tokyo-based photographer, originally appeared in the Sept. 29 issue of Asahi ...

The frog—thought extinct for almost 20 years—no longer dwells in shaded areas near the forest’s mountain waterfalls. But a population persists in warmer, sun-drenched areas.

The frogs are at the heart of this scene, which a decade ago was much different. It was quiet—and not in a good way. The frogs that are so central to this ecosystem were absent, extirpated by a ...