alexwild > The intricate galleries in this underground nest of Lasius umbratus ants are made possible by a fungus that grows within a matrix of wood pulp sculpted by the ants.

Vermillion River Observatory, Illinois, USA
alexwild > The intricate galleries in this underground nest of Lasius umbratus are made possible by a fungus that grows within a matrix of wood pulp sculpted by the ants.

Vermillion River Observatory, Illinois, USA
alexwild > The intricate galleries in this underground nest of Lasius umbratus are made possible by a fungus that grows within a matrix of wood pulp sculpted by the ants.

Vermillion River Observatory, Illinois, USA
alexwild > The intricate galleries in this underground nest of Lasius umbratus ants are made possible by a fungus that grows within a matrix of wood pulp sculpted by the ants.

Vermillion River Observatory, Illinois, USA
alexwild > Cyphomyrmex wheeleri is the most temperate of the Cyphomyrmex species, occurring as far north as San Francisco, California.  Here worker ants tend to their fungus garden.

Austin, Texas, USA
alexwild > Trachymyrmex septentrionalis in the fungus garden.

Laboratory colony at the University of Texas
alexwild > Trachymyrmex arizonensis foundress queen in her incipient fungus garden.  Notice the fine white hyphae of the mutualistic fungus as it grows over the substrate of vegetative debris she has provided for it.

Tucson, Arizona, USA
alexwild > Mycetarotes fungus garden in a lab nest.  Male ants, seen here as the winged, dark-colored individuals, perform no labor in the colony, serving instead to disperse the colonies' genes during periodic mating flights outside the nest.

Parque Nacional Iguazu, Argentina; Laboratory colony at the University of Texas
alexwild > Cyphomyrmex wheeleri is the most temperate of the Cyphomyrmex species, occurring as far north as San Francisco, California.  Here worker ants tend to their fungus garden.

Austin, Texas, USA
The intricate galleries in this underground nest of Lasius umbratus ants are made possible by a fungus that grows within a matrix of wood pulp sculpted by the ants.

Vermillion River Observatory, Illinois, USA
alexwild > The intricate galleries in this underground nest of Lasius umbratus ants are made possible by a fungus that grows within a matrix of wood pulp sculpted by the ants.

Vermillion River Observatory, Illinois, USA
The intricate galleries in this underground nest of Lasius umbratus ants are made possible by a fungus that grows within a matrix of wood pulp sculpted by the ants.

Vermillion River Observatory, Illinois, USA
See photo in original gallery.

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