GIANT FARMS. Leafcutter ants’ “nests’ enormous sizes (up to 5000 gardens) and extended lifespans (10–20 years). Atta gardens are discrete units, with an average garden size of about 30×20×20 cm3…the hundreds of Atta gardens can be spaced across an underground volume exceeding 1000 cubic meters…A. texana and A. cephalotes are leafcutter ants with enormous colonies (more than 2 million workers).”
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