Maltsev A. N. RussiaМоскваA. N. Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, 33 Leninsky Prospect, Moscow 119071evkotenkova@yandex.ru Author's articles Fertility evaluation of ecologically different forms of house mice and their hybrids of the superspecies complex Mus musculus sensu lato (Rodentia: Muridae)