In Yellowstone National Park — where gray wolves were reintroduced starting in 1995 — researchers have gone back and forth on ...

Yosemite National Park is home to several species that are endemic to the Sierra Nevadas, and many are protected by the park.

Tennessee’s big cats are mostly of the bobcat variety, but one wayward mountain lion captured the state’s attention.

Snow leopards move through the high mountains of Asia like ghosts. Few humans ever see them. They live above the tree line, ...

From mountain ridges to ocean bays, Wrangell–St. Elias National Park is a living sanctuary for Alaska’s wild heritage. Here, ...

Paleontologists may have discovered when plant-eating dinosaurs evolved their long necks after a new species of ...

Officials from Great Smoky Mountains National Park proclaimed in September that a vulnerable species of wild salamander had ...

The Wallis Annenberg Wildlife Crossing has started its greening phase, with the first native plants being placed. Completion ...

About 5,000 more plants will be installed this fall, officials say, blanketing what will become a nearly 1-acre wildlife ...

With as few as 4,000 snow leopards left in the wild, the survival of these elusive cats has become a high-stakes test of ...

A non-profit nature reserve is connecting prairie land across the most remote region of the Lower 48, preserving habitat for ...

The world we share with countless species is growing smaller, and for some, it’s already too late. Over the past century, ...