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An Ophiocordyceps fungus grows from the neck of a Camponotus carpenter ant it has killed. Armenia, Belize
This Camponotus worker ant has succumbed to an Ophiocordyceps fungus. The ant's death is peculiarly gruesome. In the early stages of infection the fungus takes partial control over the ant's brain, directing the ant to an area where the humidity is optimal for fungal growth. There, the ant bites down on a leaf vein, anchoring it in place. The fungus then kills the insect, consumes the tissues, and issues a fruiting body. Jatun Sacha reserve, Napo, Ecuador
This Camponotus worker ant has succumbed to an Ophiocordyceps fungus. The ant's death is peculiarly gruesome. In the early stages of infection the fungus takes partial control over the ant's brain, directing the ant to an area where the humidity is optimal for fungal growth. There, the ant bites down on a leaf vein, anchoring it in place. The fungus then kills the insect, consumes the tissues, and issues a fruiting body. Jatun Sacha reserve, Napo, Ecuador
The most risky phase in the life history of an ant colony is during founding, when young females set off to start new colonies. The vast majority perish at this stage. This queen carpenter ant (Camponotus modoc has been attacked and killed by a fungus, whose white hyphae are seen emerging from the carcass. Sagehen Creek Field Station, California, USA
This worker honeypot ant (Myrmecocystus mexicanus) is slowly being consumed from within by a fungus, visible here as growths extruding from the body and appendages. As soil-dwelling creatures, ants are in constant battle against microbes that thrive in the warm, humid conditions of their nests. Chiricahua Mountains, Arizona, USA
This worker honeypot ant (Myrmecocystus mexicanus) is slowly being consumed from within by a fungus, visible here as growths extruding from the body and appendages. As soil-dwelling creatures, ants are in constant battle against microbes that thrive in the warm, humid conditions of their nests. Chiricahua Mountains, Arizona, USA
This worker honeypot ant (Myrmecocystus mexicanus) is slowly being consumed from within by a fungus, visible here as growths extruding from the body and appendages. As soil-dwelling creatures, ants are in constant battle against microbes that thrive in the warm, humid conditions of their nests.

Chiricahua Mountains, Arizona, USA
This worker honeypot ant (Myrmecocystus mexicanus) is slowly being consumed from within by a fungus, visible here as growths extruding from the body and appendages. As soil-dwelling creatures, ants are in constant battle against microbes that thrive in the warm, humid conditions of their nests. Chiricahua Mountains, Arizona, USA
This worker honeypot ant (Myrmecocystus mexicanus) is slowly being consumed from within by a fungus, visible here as growths extruding from the body and appendages. As soil-dwelling creatures, ants are in constant battle against microbes that thrive in the warm, humid conditions of their nests.

Chiricahua Mountains, Arizona, USA
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all images and text © Alex Wild 2001-2013