Clidemia bush growing in a devil's garden, a monoculture caused by symbiotic Myrmelachista ants that live in the plants' domatia and kill saplings of competing species. Jatun Sacha reserve, Napo, Ecuador
Acrobat ant workers taking nectar from a lily. Ants are generally poor pollinators, so they are not the intended recipient of the nectar. Cape Tribulation, Queensland, Australia
Several species of epiphytic Tillandsia bromeliads house ants in hollow cavities around their base. Little is known about these systems, but the plants do not appear to have specialized relationships with any particular ant species. Armenia, Cayo District, Belize.