Volunteers who helped conduct the fruit bat survey pose with a banner and hold up the number of bats they saw during the survey May 30, 2015, at Andersen Air Force Base, Guam. The 36th Civil Engineer Squadron Environmental Flight worked alongside University of Guam volunteers to survey the population of federally threatened species at Andersen AFB and Northwest Field. (U.S. Air Force photo by Airman 1st Class Alexa Ann Henderson/Released)