L to R: Megan McPhee, Neil Tsutsui, and Andy Suarez searching for entrance to giant ant tunnel. See link below.

L to R: Megan McPhee, Chris Payne, Neil Tsutsui, and Andy Suarez in Kate Sessions Park, Pacific Beach, San Diego.

Horned lizard.

Chad Tillberg, Torrey Pines Extension, San Diego.

Chad Tillberg and Andy Suarez avoiding unexploded artillery during field work, Elliot Wildlife Preserve, San Diego Co.

Chad Tillberg and Andy Suarez, Elliot Wildlife Preserve, San Diego Co.

Chad Tillberg collecting from nest of Camponotus dumetorum (Hymenoptera, Formicidae), Torrey Pines Extension, San Diego.

Chad Tillberg collecting Solenopsis xyloni at Sweetwater, July 2005.

Adam Dolezal collecting Linepithema humile at Tijuana Estuary, July 2005.

Chad Tillberg finding Linepithema humile at Tijuana Estuary, July 2005 [photo by A. Dolezal].

Adam Dolezal at Torrey Pines Extension, July 2005.

Chad Tillberg GPS-ing, Los Penasquitos, July 2005.