Taking the Fish Out of Fish Feed

Feeding wild fish to farmed fish is threatening marine ecosystems. Researchers and entrepreneurs believe they’ve found solutions.

FAA: No prosecution for drone flight that slowed fight of Tucson's Bighorn Fire

Illegal drone intrusions into the Bighorn Fire airspace forced firefighters to shut down their air attack at some crucial moments. To combat the fire, low-flying aircraft are used, which could put them in the same airspace with a drone.

Earth is setting heat records. It will be much hotter one day.

As a heat wave roasted the western United States this week, temperatures in California’s Death Valley soared to a blistering 130 degrees Fahrenheit, marking the hottest temperature measured anywhere on Earth since 1931 and the third hottest day ever recorded on our planet, period.

Don’t crush that ant—it could plant a wildflower

Trilliums, bloodroot, violets—many wildflowers of spring in eastern North America bloom thanks to ants.

How Boundaries Become Bridges in Evolution

The evolution of colorful feathers shines light on the missing link in evolution by natural selection, according to new University of Arizona research.

Coyotes to coatis: Sky Island Alliance releases 90 day results for their Border Wildlife Study

After about 90 days of tracking wildlife in the lower Sky Island region of southeastern Arizona and northern Mexico, Sky Island Alliance, an environmental nonprofit in Tucson, has identified 71 species in the range of border wall construction.

Biosphere 2 Will Welcome Back Visitors with Nighttime Driving Tour

After tours were halted due to COVID-19, visitors will once again have the opportunity to visit Biosphere 2 – from the safety of their personal vehicles.

How to deal with monsoon season in Arizona

Coming to Tucson as an incoming University of Arizona freshman or transfer student means it is safe to say you will most likely not have to deal with your homework getting sucked up by a tornado, your dorm collapsing from a magnitude 8 earthquake or your Uber getting swept away by a tsunami on its way to pick you up.

Blackened runoff seen in Tucson-area wash may be just the beginning, flood experts warn

A mess of black gunk, ash, tree limbs and brush appeared out of nowhere in the Cañada del Oro Wednesday evening near Catalina, oozing downstream a few miles north of Oro Valley.