Biography of Oleg Semyonov-Tian-Shanski

Oleg Semyonov-Tian-Shanski (* 15. October 1906; † 21. September 1990) was a soviet naturalist and ecologist. He was 83 years old. He worked at Lapland Biosphere Reserve. His awards include Order of the Red Banner of Labour, Order of the Red Star and Medal "For Battle Merit". His cause of death was cardiac arrest.