Yes, you read that right: Brain-eating amoeba have been found in two popular U.S. national parks, according to a recent study from the U.S. Geological Survey, and a number of other institutions, published in the American Chemical Society’s journal, ES&T Water. Here’s what to know. What happened? Researchers took 185 water samples from five popular U.S. national parks, looking at “40 thermally impacted recreational waters” at Yellowstone National…