Prosecutors alleged genetic material from the Marco Polo argali sheep (pictured) was used to breed the Montana Mountain King A farmer has been caught illegally breeding “massive” mutant sheep to sell ...

An 81-year-old Montana man faces sentencing for cloning a giant Marco Polo sheep using illegally trafficked tissue and testicles. A sentencing memorandum submitted by the defense congratulated Arthur ...

A mountain goat leads its' kid across the Mount Evans Scenic Byway just below the summit near Idaho Springs, Colo., July 2016. Spotting a mountain goat perched high on a cliff might thrill many of the ...

The latest headlines from our reporters across the US sent straight to your inbox each weekday Your briefing on the latest headlines from across the US An 81-year-old man from Montana faces sentencing ...

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.

More than 400,000 acres of wildlands in the Eastern Sierra Nevada should be made protected habitat for an endangered mountain sheep rebounding from the threat of extinction, the federal government ...

The last year was a difficult one for Rocky Mountain bighorn sheep herd health in Colorado, while desert bighorn sheep found in far-western Colorado are faring better, according to Colorado Parks and ...

Imagine driving down Interstate 70 near East Vail and catching a glimpse of a large tan mammal with a white rump standing on the side of the road. You think it’s just another mule deer, but after a ...

MISSOULA, Mont. — A group of University of Montana researchers are in year two of a five-year study funded by Montana, Fish, Wildlife and Parks to track bighorn sheep and mountain goats. There is a ...

"Due to the snow and ice, we're closed today," zoo officials wrote on Facebook. "But here's a look at some of our locals, unbothered by the snow." "Rocky Mountain bighorn sheep have weathered many a ...

A killing spree of dozens of sheep and goats by mountain lions in a rural community in Northern California has forced ranchers and wildlife authorities to navigate the boundaries between protecting ...