BOZEMAN, Mont. — In the Madison Valley the bighorn sheep population has a capacity and habitat potential to grow to up to 1,200 wild sheep and has already relocated over 100 bighorns to new locations ...

We have a major problem with domestic sheep diseases causing the demise of native bighorn sheep on our western public lands. Domestic sheep are carriers of the diseases Mannheimia haemolycta, which ...

Like the majority of Colorado’s big game species, the success of Rocky Mountain bighorn sheep is up against habitat loss and disturbances, a changing climate and growing recreation and human pressure.

The Pikeview Quarry, barely outside of the cul-de-sacs and two-car garages of the Mountain Shadows subdivision, seemed like an odd place to find one of Colorado’s most intrepid species. Bulldozers, ...

Wildlife officials will take to the air this week to gain a better understanding of the bighorn sheep as part of a five-year study. “We don’t know a lot about how these bighorns use the landscape,” ...

The discovery of plague DNA in a 4,000-year-old sheep bone is rewriting the story of one of humanity’s most feared pathogens, revealing that the disease’s early spread depended on animals long before ...