Sitting in an old-growth spruce fir forest, Doug Smith says he can see first-hand the impact of reintroducing wolves on the ...

Long before Yellowstone became the world’s first national park in 1872, wolves thrived in the U.S. Rocky Mountains. But early Yellowstone ... only for the pack to triumphantly bring down a bull elk on ...

Looking for the best spots to see wildlife in America's gorgeous National Parks? Check out this list for the top Parks to visit to spot amazing animals.