Scientists say the population of endangered Sierra Nevada bighorn sheep appears to have stabilized after suffering devastating losses during the record-breaking winter of 2022-2023. Tom Stephenson ...

Sierra Nevada bighorn sheep learn to leap from crag to crag in early lambhood, developing quickly into keen-eyed, strong-limbed and extremely agile creatures, always on the move to escape mountain ...

Airlifting bighorn sheep back into the Sierra Nevada’s national parks. This March, a large helicopter thrummed over the 13,000-foot-high pinnacles of Yosemite National Park’s Cathedral Range with an ...

The last documented sighting of a native ram was in 1958 in the Sierra ... desert bighorn, distinct from its Rocky Mountain cousin, ranges from the Chihuahuan Desert in Texas to Utah, Nevada ...

Without man-made reservoirs called guzzlers that were built in the late 1980s, desert bighorn sheep probably wouldn’t call Southern Nevada’s dry Muddy Mountains home, said Joe Bennett ...

In California, the Sierra Nevada bighorn sheep, which is listed as an endangered species, lost an estimated 40 to 60 animals. 'We're not including any predation or normal mortality or any other ...