On behalf of all employees of the Institute, we congratulate Viktor Nikolayevich Orlov, a world-famous zoologist, Doctor of Biological Sciences, professor, laureate of the State Prize, prizes named after V.I. V. E. Sokolov and Soros, vice-president of the Theriological Society, member of the presidium of VOGIS.
Viktor Nikolaevich for many years was the head of one of the largest and most productive laboratories of the Institute (mammalian microevolution laboratory), co-chairman of the Scientific Council of the Institute. Scientific interests of Viktor Nikolayevich have always been with the study of the problems of variability of mammals in the process of evolution, with the search for new approaches to the development of the concepts of species and speciation. He is one of the founders and distributors of karyosystematics methods in theriology. It was Viktor Nikolaevich who discovered the first of the twin species of mammals and described new intraspecific chromosomal forms. The results of these works make a huge contribution to the study of the biological diversity of not only native, but also world fauna.