11:07 a.m. June 29, 2022: A previous version of this story misspelled Constance Millar’s first name. Forest pathologist Martin MacKenzie strode forward on a narrow path through California’s mythic ...

FRESNO, Calif. — The bristlecone pine tree, famous for its wind-beaten, gnarly limbs and having the longest lifespan on Earth, is losing a race to the top of mountains throughout the Western United ...

In a time of relentless change, it’s soothing to contemplate deeply rooted, long-lived trees. But now our climate of uncertainty affects even Great Basin bristlecone pine, Pinus longaeva, the species ...

While the aspens and cottonwoods have lost their leaves in preparation for winter, Colorado’s slopes still thrive with an abundance of evergreen conifers. One pine stands out in a few isolated ...

The 4,853-year-old Great Basin bristlecone pine tree known as Methuselah grows in the Ancient Bristlecone Pine Forest in the White Mountains of Inyo County. (Tayfun Coskun / Anadolu Agency) Scientists ...

PARK COUNTY – High on the side of one of Colorado’s fourteeners, a grove of ancient bristlecone pine trees leans as if peering over the ridge to watch the lines of traffic streaming over Hoosier Pass ...

The oldest tree species is the Great Basin bristlecone pine (Pinus longaeva). The oldest tree of the species is named Methuselah and is more than 4,800 years old. The longevity of the Great Basin ...

High atop the remote, rocky slopes of California's White Mountains, the harsh conditions make it difficult for life to take root. But for a certain type of tree – and for those who have traveled here ...

A nonprofit tree cloning organization has failed to create an exact genetic replica of the oldest known tree on Earth -- a bristlecone pine dubbed Methuselah that clings to arid soil in California’s ...

Bristlecone pine and limber pine trees in the Great Basin region of the western United States are like two very gnarled, old men in a slow-motion race up the mountaintop, and climate change is the ...