Some species are at their most active in winter, whether they’re flying, feeding, or mating. From elephant seals in ...

Wyoming’s wild bison are the first of the ungulates (hooved animals) to kick off the fall breeding season, or rut. For bison, the rut starts in July, but really gets going in August and carries into ...

Tourists traveling by plane over Yellowstone National Park on Thursday were treated to a rare and magnificent view of the world’s tallest active geyser shooting steam 400-plus feet skyward. The ...