170609-F-RU983-0003
A juvenile California tiger Salamander migrates across the Travis Air Force Base, Calif., airfield in search of a suitable burrow, June 9, 2017. These creatures will emerge from vernal pools on base when high humidity makes conditions optimal. The species is
restricted to grasslands and low foothills with pools or ponds that are necessary for breeding. his salamander is listed as endangered or threatened in
much of California. (U.S. Air Force photo/ Heide Couch)
170609-F-RU983-0003
A juvenile California tiger Salamander migrates across the Travis Air Force Base, Calif., airfield in search of a suitable burrow, June 9, 2017. These creatures will emerge from vernal pools on base when high humidity makes conditions optimal. The species is
restricted to grasslands and low foothills with pools or ponds that are necessary for breeding. his salamander is listed as endangered or threatened in
much of California. (U.S. Air Force photo/ Heide Couch)