These invisible invaders are getting some peace of “mind” on your vacation. Often associated with big skies and purple mountains majesty, the US National Parks are increasingly becoming a cesspool for an insidious scourge — brain-eating amoebas. Researchers with the US Geological Survey and Montana State University found the parasitic interloper at thermal zones in three major National Parks: Lake Mead National Recreation Area, Grand Teton National Park, and Yellowstone National Park, ABC Utah reported . A new study reveals that some of America’s favorite national parks, including Grand Teton in Wyoming (pictured), are teeming with brain-eating amoebas. Tom – stock.adobe.com According to a study published in ACS Publications , some of these areas were previously not known to harbor the invader. Dubbed Naegleria fowleri, this microscopic monster is known for infiltrating swimmers’ noses and taking root in their brains, infecting them with primary amebic meningoencephalitis.…