Migrant advocates fear that by sealing hundreds of miles of the U.S.-Mexico border, troops will funnel migrants to far more ...

Imagine standing under the blinding sun of the Sonoran Desert, surrounded by towering, ancient sentinels with spiny arms ...

There are animals trying to cross as if their life depended on it,” researcher Erick Meza told the Society of Environmental Journalists’ conference.

Some Arizona border officials have welcomed President Donald Trump’s order for a military takeover at the U.S-Mexico border.

Thomas Alvarez of the Tohono O’odham Nation looks over mountains for a site marked in his handheld GPS outside of Globe, ...

Two Indigenous food educators showcased the abundance of the Sonoran Desert during a tour for the Society of Environmental ...

The endangered Mount Graham red squirrel was classified as endangered in 1987, with population numbers ranging from 35 to 550 ...

After a devastating wildfire, endangered Mount Graham red squirrel populations recovered through joint efforts from four ...

A silent crisis slithers through the sunbaked deserts and rugged mountains of the American Southwest—a crisis woven from ...

On a 3,050-acre facility in Stanfield, Arizona—just minutes from the busy metropolis of Phoenix—Nissan built an off-road ...

The first Trump administration built long segments of steel wall on Arizona's border. Conservationists fear wildlife will ...