Ingo Arndt / Red wood ant (Formica rufa) carrying construction material to anthill (fir needles), Germany.

Ingo Arndt / Cathedral Termite mount, Litchfield National Park, Northern Territory, Australia

Ingo Arndt / Magnetic termite (Amitermes meridionalis) aerial view of mounds in grassland, Litchfield National Park, Northern Territory, Australia.

Ingo Arndt / Magnetic termite (Amitermes meridionalis) aerial view of mounds in grassland, Litchfield National Park, Northern Territory, Australia.

Ingo Arndt / Magnetic Termite (Amitermes meridionalis) mounds in grassland, Litchfield National Park, Northern Territory, Australia.

Ingo Arndt / European Red Wood Ant (Formica polyctena) nests in pine forest, Hessen, Germany, July.

Ingo Arndt / Topi (Damaliscus lunatus) guard standing on termite mound, Masai Mara National Reserve, Kenya, Africa

Ingo Arndt / Cheetah (Acinonyx jubatus) male on termite mound, Masai Mara, Kenya

Cheryl-Samantha Owen / Southern tree hyrax (Dendrohyrax arboreus) on a termite mound, Tarangire National Park, Northern Tanzania.

Pal Hermansen / Wood ants (Formica rufa) with larvae on rusty car, Bastnas car graveyard, Varmland, Sweden, June.

Vincent Grafhorst / Meerkat (Suricata suricatta) sentinel on termite mound, Makgadikgadi, Botswana

Ingo Arndt / Cathedral termite mound, Litchfield National Park, Northern Territory, Australia