CBS, San Francisco (August, 19, 2014) - California’s drought may lead to the extinction of a tiny fish holding onto dwindling habitat in Tuolumne County. Researchers with the UC Davis Center for Watershed Sciences last week set out to find the Red Hills roach, a minnow-like fish that lives in creeks and spring-fed pools. While the researchers did find a creek with hundreds of Red Hills roach fish, two-thirds of the creeks visited were dry, according to UC Davis Fish biologist Peter Moyle. “So that gave me great concern that these fish could be on the verge of extinction, but, I mean, still you look at it this is a very restricted habitat,” Moyle told Capital Public Radio.