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