Andy has over 20 years of experience as a biospeleologist and conservation biologist and he served as State Herpetologist for Texas Parks and Wildlife Department for seven years. He currently leads several research projects including status assessment and genetic analysis of the rough-footed mud turtle, Texas groundwater salamanders, and the Mexican blindcat; The Texas Horned lizard Reintroduction Project; evolution of cavefish in Texas and Mexico; and establishment of captive colonies of rare and endangered species.