We traveled to Canada’s harsh Northwest Territories to report on a joint U.S.-Canadian military exercise aimed at projecting ...

A species that was hunted to local extinction has returned to its natural habitat, say scientists who witnessed the population recovery via satellite imagery.

Shekhar laughs: “No ghosts up there! Since the Changthang Wildlife Sanctuary is nearby, we did notice paw prints in the snow — wolves and snow foxes had visited our campsite at night.