Here, they demonstrate that the worms are averse to a very high pH by showing that the worms avoided areas of the experimental
environment where the researchers created
highly alkaline conditions.
In the following decades, similar extremophilic microorganisms have also discovered around the globe in some of the harshest terrestrial
environments imaginable, from the boiling geysers of the Yellowstone National Park in the U.S. to the
highly alkaline, acidic, and toxic waters of the Rio Tinto river in southwestern Spain to the Mono Lake in California, just to name a few.