Figure 5 from: Rutkowski T, Maák I, Vepsäläinen K, Trigos-Peral G, Stephan W, Wojtaszyn G, Czechowski W (2019) Ants trapped for years in an old bunker; survival by cannibalism and eventual escape. Journal of Hymenoptera Research 72: 177-184. https://doi.org/10.3897/jhr.72.38972

Figure 5 The earth mound, almost deserted by the ants, at the bottom of the bunker in winter, four months after setting the boardwalk. 'Ant cemeteries' are visible around the mound and next to the walls. Photo taken on 11.02.2017 (Wojciech Stephan).