A nest of the black-headed bull ant Myrmecia nigriceps.

Yandoit, Victoria, Australia
Bull ants are solitary foragers, hunting alone even though they live in colonies. Here, a worker Myrmecia nigriceps descends a tree trunk in a eucalypt woodland.

Yandoit, Victoria, Australia
Bull ants are solitary foragers, hunting alone even though they live in colonies. Here, a worker Myrmecia nigriceps descends a tree trunk in a eucalypt woodland.

Yandoit, Victoria, Australia
Phil Ward and Gary Alpert collect ants in the Cape York Peninsula of northern Australia.
Amitermes laurensis, magnetic termite mound. The north-south orientation of these blade-like structures is thought to help the termites regulate the temperature of their nest.

Cape York Peninsula, Queensland, Australia
Nothomyrmecia macrops

Poochera, South Australia
Nothomyrmecia macrops

Poochera, South Australia
Nothomyrmecia macrops, queen

Poochera, South Australia
Ant colonies usually start small.  Here a young bull ant queen (Myrmecia pyriformis) tends to a larva in her incipient nest.

Yandoit, Victoria, Australia
A nest of the black-headed bull ant Myrmecia nigriceps.

Yandoit, Victoria, Australia
A nest of the black-headed bull ant Myrmecia nigriceps.

Yandoit, Victoria, Australia
A nest of the black-headed bull ant Myrmecia nigriceps.

Yandoit, Victoria, Australia
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all images and text © Alex Wild 2001-2013