Abstract: Tatiana А. Novgorodova & Svetlana G. Zhukova Dr. Tatiana А. Novgorodova (contact author), Institute of Animal Systematics and Ecology, Siberian Branch, Russian Academy of Sciences, Frunze ul., 11, Novosibirsk, 630091, Russia. E-mail: tanovg@yandex.ru Dr. Svetlana G. Zhukova, Novosibirsk State University, Pirogova ul., 20, Novosibirsk, 630090, Russia. E-mail: xarza@mail.ru Myrmecol. News 10: 116 In this study, a new system of group foraging and information transmission has been revealed through use of the Reznikova-Ryabko Binary Tree Maze, for Formica pratensis Retzius, 1783. The main idea of this approach is to ask ants to transmit items of information of definite length and complexity (Reznikova & Ryabko 1994). The investigations were carried out in 2003 - 2005. Ants had to memorize and pass on 2, 4, or 6 bits of information in order to find a trough with syrup on one of the final "leaves" of a maze involving 2, 4, or 6 forks. All…