One of the rarest species in the world, the Devils Hole pupfish is native to a single, unlikely habitat: Devils Hole, a geothermal, aquifer-fed pool within a limestone cavern in Nevada’s Amargosa Desert. Due to its precarious existence, the 22,000-year-old species has been the subject of considerable attention. Scientists closely monitor the population, which fluctuates throughout the year and has, at times, dipped as low as 40. Why have some pupfish been removed from Devils Hole? Discuss
Source: The Free Dictionary