A two-part special airing Sunday night on Nat Geo WILD, Wild Yellowstone portrays animals' struggle to survive over the course of a year in the unforgiving, relentless, and endlessly beautiful Yellowstone National Park.
Here, a Great Grey owl on the lookout for mice in the fall.
Ryan Sheets/National Geographic Channels
At the Wildbrunch Ranch in Idadho, a captive Mountain lion is stalking through the snow.
Ryan Sheets/National Geographic Channels
Fall arrives in the Grand Teton National Park.
Ryan Sheets/National Geographic Channels
A wolf faces the Frozen Frontier in one of the two Wild Yellowstone specials.
Ryan Sheets/National Geographic Channels
An elk is bugling to attract females during the elk rut.
Ryan Sheets/National Geographic Channels
A river otter travels through deep snow.
Howard Bourne/National Geographic Channels
Bison in the woodland early winter.
Ryan Sheets/National Geographic Channels
The moon sets behind Signal Mountain behind Jackson Lake in the middle of winter.
Ryan Sheets/National Geographic Channels
A bison herd in summer evening light during the bison rut.
Theo Jebb/National Geographic Channels
An aerial shot in the spring.
Steve Rogers/National Geographic Channels
