The orange balls in the Reticulitermes nest are a fungus that assumes the size, texture, and chemical signature of termite eggs. Termites, being blind, can't tell the difference and care for the fungus as if they were their own eggs. 

Bell Smith Springs, Illinois, USA
A newborn termite hatches into a mix of fungal egg-mimics and termite eggs.

Bell Smith Springs, Illinois, USA
The orange balls in the Reticulitermes nest are a fungus that assumes the size, texture, and chemical signature of termite eggs. Termites, being blind, can't tell the difference and care for the fungus as if they were their own eggs. 

Bell Smith Springs, Illinois, USA
The orange balls in the Reticulitermes nest are a fungus that assumes the size, texture, and chemical signature of termite eggs. Termites, being blind, can't tell the difference and care for the fungus as if they were their own eggs.

Bell Smith Springs, Illinois, USA
The orange balls in the Reticulitermes nest are a fungus that assumes the size, texture, and chemical signature of termite eggs. Termites, being blind, can't tell the difference and care for the fungus as if they were their own eggs. 

Bell Smith Springs, Illinois, USA
The orange balls in the Reticulitermes nest are a fungus that assumes the size, texture, and chemical signature of termite eggs. Termites, being blind, can't tell the difference and care for the fungus as if they were their own eggs.

Bell Smith Springs, Illinois, USA
See photo in original gallery.
all images and text © Alex Wild 2001-2013