Arizona biologists are sounding the alarm on the non-native and feral burros that are negatively impacting important plant ...

Saguaro Park in southeastern Arizona, near Tucson, offers a landscape unlike anything you’ll see elsewhere. The park hosts ...

After years of pressure and litigation from environmental groups, the U.S. Fish and Wildlife Service is sticking with a previous stance that the Sonoran desert tortoise doesn't need federal protection ...

A squadron of javelinas browses across a dusty patch of dried grass in trail-camera footage captured at sunset on Jan. 20. If you turn up the volume and listen closely, you can hear the hum of traffic ...

People who live along the border watched their aquifers recede as the border wall grew. Now they fear it will happen again.

As the trail wound its way into Arizona's Sky Islands, the region's biodiversity was on full display, as were the threats ...

Every mind-bending molecule in nature has an evolutionary origin; a defense against being eaten, a lure for pollinators, or perhaps a happy biochemical accident. Though they seem extraordinary, life ...

Tucson is tucked into the gorgeous Sonoran Desert, and this upscale neighborhood deftly blends natural beauty with artistic ...

A new report from the Arizona Game and Fish Department showed the state's unchecked feral burro population is destroying keystone plant species in the Sonoran Desert. Wildlife scientists studied plant ...

Scientists discovered how to study cactus movement without harm - by measuring the silent sway of these desert giants using ...

Traveling across the United States doesn’t have to mean draining your savings or sacrificing comfort and good experiences. In ...

Rising from the Sonoran Desert like a mirage, Tovrea Castle at Carraro Heights stands as one of Arizona’s most enchanting architectural wonders. This cream-colored, tiered structure resembling a ...