Open of an Acromyrmex heyeri thatched nest. from Carbon dioxide levels and ventilation in Acromyrmex nests: significance and evolution of architectural innovations in leaf-cutting ants

Open of an Acromyrmex heyeri thatched nest. After removal of the grass fragments forming the thatch, the fungus garden was extracted and can be observed as the spongiform white mycelium covered by ants. Fungus garden was placed in this case completely above soil surface level. El Pinar, Uruguay. Video by M. Bollazzi.