In the Andes Mountains of northern Peru, a long-tailed mammal with a “facial mask” moved through the undergrowth. Suddenly, ...

The mouse walks when moving slowly, ... The long tail trails behind, assisting in balance. Woodland jumping mice prefer cool, moist spruce-fir forests and hemlock-hardwood stands.

The U.S. Fish and Wildlife Service says a long-tailed mouse found only in Colorado and Wyoming will remain protected under the Endangered Species Act.

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 ...

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 ...

The U.S. Fish and Wildlife Service says a long-tailed mouse found only in Colorado and Wyoming will remain protected under the Endangered Species Act.