Argentine ant paralleled only by human society", and had probably been spread and maintained by human travel. They have been extraordinarily successful, in part, because different nests of the introduced Argentine ants seldom attack or compete with each other, unlike most other species of ant. In their introduced range, their genetic makeup is so uniform that individuals from one nest can mingle in a neighboring nest without being attacked. Thus, in most of their introduced range, they form supercolonies. "Some ants have an extraordinary social organization, called unicoloniality, whereby individuals mix freely among physically separated nests. This type of social organization is
Tupolev ANT-8 Tupolev ANT-8 The ANT-8 was an experimental flying boat designed by Tupolev. It was designated the "MDR-2" (MDR meaning "Morskoi Dalnii Razvedchik", or Naval Long-Range Reconnaissance) by the military. Tupolev and the TsAGI were asked to build the ANT-8 in 1925, but other projects were deemed more important. Thus, little was completed on the ANT-8. Finally, in 1930, with Ivan Pogosski leading, actual work was started on the aircraft. Its first flight was on January 30, 1931, piloted by S. Riballschuk. It is important to note that shortly after the ANT-8 flew for the first time, the ANT-14 lifted off