what is the overall population of this place?
The whole region of Asian Russia (or Siberia in the broadest usage of the term) is home to approximately 30 million people.
Siberia
 the whole region of Asian Russia (or Siberia in the broadest usage of the term) is home to approximately 30 million people. 
are canadian soldiers and mayflies the same thing No, Mayflies  are aquatic insects belonging to the order Ephemeroptera. what is mayfly? They are aquatic insects belonging to the order Ephemeroptera. how do these type of insects breath? UNANSWERABLE who was the first person to discover these insects? The oldest mayfly inclusion in amber is "Cretoneta zherichini" (Leptophlebiidae) from the Lower Cretaceous of Siberia. how is the climate like of the last place mentioned? The climate of Siberia varies dramatically, but it typically has short summers and long, brutally cold winters. can you name some important cities here? Novosibirsk
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Siberia [SEP] Demographics
The remaining Russian citizens of Siberia consists of other groups of non-indigenous ethnic origins and those of indigenous Siberian origin. Among the largest non-Slavic group of Russian citizens of Siberia are the approximately 400,000 ethnic Volga Germans, Russified Romanians with ancestral origins from Bessarabia (present-day Moldova) also live in Siberia. The original indigenous groups of Siberia, including Mongol and Turkic groups such as Buryats, Tuvinians, Yakuts, and Siberian Tatars still mostly reside in Siberia, though they are minorities outnumbered by all other non-indigenous Siberians. Indeed, Slavic-origin Russians by themselves outnumber all of the indigenous peoples combined, both in Siberia as a whole and its cities, except in the Republic of Tuva.