In the Andes Mountains of northern Peru, a long-tailed mammal with a “facial mask” moved through the undergrowth. Suddenly, the ground dropped out underneath its hairy paws, and it fell into a ...

A new marsupial species found in the Río Abiseo National Park, Marmosa chachapoya, contributes to the biological richness of the Andes.

While exploring the region around an archaeological site in the Peruvian Andes, researchers discovered a never-before-seen creature. The tiny, big-eyed marsupial — named Marmosa chachapoya — is a ...

High in the Andes, a tiny surprise awaited scientists who had come to find an obscure species of squirrel. What they found ...

Scientists caught a long-tailed mammal with a “facial mask” in a trap at a Peru national park and discovered a new species, a study said. Photo from Pedro Peloso, shared by Robert Voss In the Andes ...