Details about that amazing aluminum nest cast photo that is making the rounds. It's SCIENCE!
Tschinkel W.R. (2004). The nest architecture of the Florida harvester ant, Pogonomyrmex badius., Journal of insect science (Online), PMID: 15861237
Tschinkel W.R. (2010). Methods for Casting Subterranean Ant Nests, Journal of Insect Science, 10 (88) 1-17. DOI: 10.1673/031.010.8801