The study of the water samples obtained in May 2012 from the Antarctic Lake Vostok showed that the bacteria living in it that cannot be attributed to any of the already known subkingdoms of bacteria, as the scientist from the laboratory of genetics of eukaryotes of Saint Petersburg Nuclear Physics Institute (PNPI) Sergei Bulat said. "A week ago the last analysis was actually completed (there will be another one, but its results are unlikely to change anything). After the exclusion of all known contaminants (extraneous organisms)  we detected the DNA of the bacteria that did not coincide with any of the known species in the world's databases. We call this life non-identifiable and unclassified. We were not able to ascribe it to any known bacteria subkingdom" - Bulat said.