The Sierra del Divisor, on the border between Peru and Brazil, harbors exceptional biological richness. Its geographic isolation and diverse habitats—from dense forests to rugged mountains ...

First conceived in the 1990s, Sierra del Divisor National Park began to take shape as scientists studied the area more intensively in the early 2000s.

Peru on Sunday will officially declare Sierra del Divisor National Park, a 1.3 million hectare (3.3 million acre) reserve that is home to uncontacted indigenous tribes, endangered wildlife, and ...