The endangered pupfish in Death Valley National Park had their ... Known as the Devils Hole Pupfish, the animals live in a deep, water-filled cave that lends the fish their name.

Decaying organic matter was swept into the depths of the 500-foot cavern where the fish live, possibly providing a kind of “reset” that otherwise could have contributed to low oxygen levels in ...

"I think we all lose our patience with how hot it is," says Brandi Stewart, who works at Death Valley National Park ... The majority of people who work and live in the national park are located ...