Keywords: US Navy 060328-O-9999J-001 A wildlife biologist contracted by the Navy uses a dip net to sample tadpoles in a wetland at a Travis Air Force Base Firing Range.jpg en TRAVIS AIR FORCE BASE Calif March 28 2006 A wildlife biologist contracted by the Navy uses a dip net to sample tadpoles in a wetland at a Travis Air Force Base Firing Range to demonstrate the amphibian risk assessment protocol U S Navy photo Amy Hawkins/Released 2006-03-28 060328-O-9999J-001 Navy http //www navy mil/view_image asp id 73051 U S Navy photo Amy Hawkins PD-USGov-Military-Navy Travis Air Force Base United States Navy images from California Wetlands of California |