The Ever-Resilient Pupfish Makes a Comeback in Death Valley NYT: Science By: Alexander Nazaryan 9 May 2024 at 05:04 The spring population of the critically endangered species is at a 25-year high, a surprising rebound in a tiny desert cave. ยฉ BioStock Images/AlamyA Devils Hole pupfish in a pool of the Ash Meadows complex in the Nevada portion of Death Valley National Park.