The speedy and delicate species is extremely wary of humans. The few remaining Sierra Nevada red foxes live in barren, rugged terrain at high elevations.

Fortunately for residents of California, Oregon and Washington, Axial Seamount doesn’t erupt explosively, so it poses zero risk of any tsunami.

California’s official animal inspires awe and holds cultural significance. But some wildlife officials say reintroducing grizzlies would lead to increased conflict between humans and bears.

La Nina, the natural cooling flip side of the better-known and warmer El Nino climate phenomenon, has dwindled away after just three weak months.

It was an auspicious start to an exploration mission that has ambitious goals.

Almost 1,000 migrating songbirds have died after smashing into windows at an exhibition center on Chicago’s lakefront.

The nation’s deadliest wildfire — with 100-plus fatalities on Maui as the count grows — came in a state known for its natural beauty, not natural disasters.

The hot conditions are developing too quickly, and across too much of the planet, to be explained solely by El Niño.

Texas Parks and Wildlife officials determined low dissolved oxygen caused the massive number of fish deaths. Most of the fish that washed ashore were Gulf menhaden.

With many wild animal and plant species under a biodiversity crisis driven by habitat loss, climate change and other pressures, scientists say they are worried about the added burden of PFAS contamination.