Tiny endangered pupfish have returned to Ayer Lake at the Boyce Thompson Arboretum after the lake was drained for dam repairs.

RENO, Nev. — For 10,000 years, a tiny iridescent blue fish has lived in the depths of a cavern in Nevada’s desert. But a new study says climate change and warming waters — and its lack of mobility — ...

When endangered species reach low numbers, their survival can depend on whether or not they have new habitats to live in, ...

There was not much hope for tiny, endangered Devils Hole pupfish as the species' population dwindled to just a few dozen since the late 1990s. But recent population spikes are giving scientists a ...

Devils Hole pupfish are endangered fish that live in one of the driest places on the planet. The pupfish are now only found in the upper 80 feet of the cave on an 11-foot by 16-foot shallow shelf in ...

National Park Service aquatic ecologist Kevin Wilson descends a ladder into Devil's Hole, home to one of the world's rarest fish, the Devil's Hole pupfish. (Brian van der Brug / Los Angeles Times) How ...

A zoo in southwest England is working to rescue a freshwater fish species, considered one of the "most imperiled groups of animals on earth" from extinction. Whipsnade Zoo in Dunstable, a town in ...

Divers who surveyed a water-filled limestone cave 90 miles northwest of Las Vegas found that the planet's only wild population of Devil's Hole pupfish had not dropped below the lowest estimate of 38 ...

Thousands of flower peepers have been tromping through Death Valley National Park since February in search of record blooms. But there’s another boom in progress: the desert pupfish. Depending on the ...

Have you ever felt stuck in a bad situation that you couldn't get out of through no fault of your own, and all you could do is just make the best of it? If so, maybe you can relate to this next story.

A new refuge in the California desert offers a long imperiled species its first real chance to thrive. By Sabrina Imbler The Owens pupfish, a small blue fish native to the springs in the California ...