Weaver's ants are green and are found in complicated nests of leaves that have been weaved or sewn together in the treetops. The workers pull the edges of a leaf together with their jaws, while other workers follow behind with larvae which they gently squeeze using their mandibles. The larvae slowly release a silken thread that is used to fasten the edges of the flexible leaves together. It is not uncommon for the ants to join several trees together, and the weaver ants protect their host trees. There can be millions of worker ants within the weaver ant colony. They are extremely territorial and will be very aggressive in the defense of their area from trespassers.
Leaf cutter or fungus gardening ants are best known for their agricultural ability to grow fungus, providing their own food source. They shear off a piece of plant and bring it back to their underground shelter. There they chew the leaves and use the somewhat processed leaf bits to begin the process of growing fungus. These incredible ants even use antibiotics which they extract from a form of Streptomyces bacteria, to reduce the progress of unwanted fungus. Their colonies can consist of as many as eight million individual ants. Besides humans, these ants shape the largest and most intricate animal cultures on earth.