Deep in the Peruvian jungle, there exists a corner of the world that remains untouched — one teeming with giant anacondas, where the haunting cries of howler monkeys send brightly colored macaws ...

A meditation on observation, revision, and the quiet thrill of being wrong — and what all of that means for conservation.

Conservation crews have helped plant and seed thousands of native trees and other vegetation. Salmon have responded in kind.