A series of fire ant (Solenopsis invicta) nests along a curb.

Austin, Texas, USA
The distinctive soil mounds of the fire ant Solenopsis invicta help ants maintain humidity and temperature levels ideal for brood development.

Austin, Texas, USA
A series of fire ant (Solenopsis invicta) nests along a curb.

Austin, Texas, USA
A cut-away of a fire ant (Solenopsis invicta) mound showing the intricate system of galleries within the nest.

Austin, Texas, USA
The distinctive soil mounds of the fire ant Solenopsis invicta help ants maintain humidity and temperature levels ideal for brood development.

Austin, Texas, USA
A cut-away of a fire ant (Solenopsis invicta) mound showing the intricate system of galleries within the nest.

Austin, Texas, USA
A series of fire ant (Solenopsis invicta) nests along a curb.

Austin, Texas, USA
The distinctive soil mounds of the fire ant Solenopsis invicta help ants maintain humidity and temperature levels ideal for brood development.

Austin, Texas, USA
A series of fire ant (Solenopsis invicta) nests along a curb.

Austin, Texas, USA
A series of fire ant (Solenopsis invicta) nests along a curb.

Austin, Texas, USA
A series of fire ant (Solenopsis invicta) nests along a curb.

Austin, Texas, USA
See photo in original gallery.
all images and text © Alex Wild 2001-2013