Tag: West

In 2019 and again in 2020, swarms of painted lady butterflies irrupted in the millions in Southern California. People couldn’t drive their cars without the insects crashing into their vehicles’...

Federal officials are preparing to remove four dams along the Klamath River to improve the watershed along the California-Oregon state line. “Clean water, healthy forests and fertile land made the...

When 72 cat deaths in a Southern California community were attributed to coyotes within 18 months, it left biologists befuddled. Past research suggested that domestic cats typically make up less...

Over 200 years ago, the Steller’s sea cow (Hydrodamalis gigas) swam along the coasts of the northern Pacific, consuming massive amounts of kelp and seaweed. “These animals are very voracious...

It was raining when researchers fit a female wolf with an Argos radio tracking collar in 1991—one of the first times the technology had been used in such a way....

New maps documenting migration routes throughout the West can help inform managers and conservation groups about areas that are important for deer, elk and other migratory species in the region....

The rise of populism in the United States is affecting a range of issues, and according to a recent study, wildlife management is no exception. The study published in Biological...

Monarch butterflies that overwinter on the West Coast of North America have declined from the millions 30 years ago to only 300,000 today, according to new research, raising concerns that...

An extensive analysis led by the U.S. Geological Survey has found widespread mercury contamination in western habitats and wildlife. Mercury levels varied from place to place, fluctuating with factors such...