Excerpted and adapted with permission from John Reid and Thomas Lovejoy’s Ever Green: Saving Big Forests to Save the Planet, published March 2022 by W. W. Norton and Company. All rights reserved. The ferry that carries cars, trucks, and people across the Sangha River runs only in the daytime. We were on our way back from a weeklong visit to one of the Congo’s most intact, wildlife-rich forest redoubts, called the Goualougo Triangle, which is separated by the Sangha from the country’s paved roads and towns. When we reached the…