Buffelgrass is the biggest threat to our ecosystem in southern Arizona and now, Sonora-Arizona Desert Museum is using sheep to get rid of it on.

A thin layer found in the top few centimeters of soil plays a big role in its ecology. Biocrust is built, maintained and ...

Organ Pipe Cactus National Monument in Arizona sits along a primary migratory flyway for birds stopping during their long journeys elsewhere. Birders, photographers, and those who simply enjoy ...

Hidden away in the Sonoran Desert, this ancient monument grants visitors a glimpse back in time and a chance to wander around ...

One will be the Chuckwalla National Monument, encompassing more than 620,000 acres of desert woodlands and washes that provide critical habitat for millions of migrating birds, endangered desert ...

Mycorrhizal fungi are vital to ecosystems around the world, but remain largely understudied, especially in arid regions. They ...

The second new monument will be the 200,000-acre Sáttítla National Monument in northern California near the Oregon border, the person familiar with Biden's visit confirmed.

The second new monument will be the 200,000-acre Sáttítla National Monument in northern California near the Oregon border, the person familiar with Biden's visit confirmed.

It's where natural history perfectly blends with the iconic saguaro cacti, which dominate the park's landscape.

Conservation groups gathered to support two national monuments, opposing a plan by the Trump administration to open lands to ...