The Army's research facility includes a permafrost tunnel — about a third of a mile long — that has Ice Age-era animal bones jutting out from the walls.

An ancient steppe bison horn protrudes from an underground wall within the Permafrost Tunnel Research Facility. (Eve Baker/Fort Wainwright Public Affairs Office) And these are not abstract ...

The now-extinct steppe bison once roamed the Iberian Peninsula during the Ice Age, and while European bison aren't native to the area, they have at least demonstrated an ability to thrive in ...

these qualities favor growth of grassland and sagebrush steppe. These landscapes are called the “Serengeti of North America” — lush grasslands that support large populations of bison and ...

From unstable slopes to rock falls, thawing permafrost will have many consequences for mountain regions, including the Swiss ...

You’ll also find a herd of European bison (pictured) introduced to the park as part of a European-wide initiative to save this once-flourishing species. Francisco Negroni/Alamy Stock Photo Soaring ...

Musk oxen and other animals survived because of their flexibility, toughness, and determination. Huge, shaggy-haired steppe bison roamed Eurasia and North America’s verdant plains during the last ice ...

Although European bison were never native to the U.K., they are the closest living relatives to the steppe bison and other wild grazing animals that once were. Credit: Peter Yeung But already, Wilder ...