So, there are tiny little creatures called acidophiles that really like to live in water that has a lot of acid in it. Now, where do they live exactly? Well, they like to hang around in something called acid mine drainage. This is caused when water gets into mines where we take out rocks or minerals, and the water mixes with the rocks and becomes very, very acidic. It's not good for people to drink or swim in this water, but the acidophiles love it!
They are called acidophiles because they are so good at living in acidic environments. They have special features in their bodies that let them handle all the acid, and they actually eat the things that make the water acidic.
So why should we care about these little creatures? Well, they can actually help clean up the acid mine drainage! By eating the things that make the water so acidic, they can help the water become less acidic and more safe for other creatures to live in. Pretty cool, huh?