After a winter of record cold and heavy snowfall, dissolved oxygen levels drop under ice, suffocating fish and other ...

Powerful earthquakes like the one felt last week across Northern California are stark reminders for people to plan — perhaps to fortify their home or business or, at minimum, finally build that ...

Devils Hole pupfish are pictured. The rare and endangered fish live in a protected 500-foot limestone cavern in Death Valley National Park. Olin Feuerbacher National Park Service A Death Valley ...

Earthquakes in December and February created waves in a Death Valley National Park pond that devastated the habitat of one of the world's rarest fish, but recovery efforts are now showing promise, ...