To the 50^th anniversary of S.E. Grigoriev

M. Yu. Cheprasov
M.K. Ammosov North-Eastern Federal University
Russian Federation

Cheprasov Maksim Yuryevich – Candidate of Biological Sciences, Senior Researcher, Head of the Laboratory. “P.A. Lazarev Mammoth Museum”, D.D. Savvinov Institute of Applied Ecology of the North 

Yakutsk

G. N. Savvinov
M.K. Ammosov North-Eastern Federal University
Russian Federation

Savvinov Grigory Nikolaevich – Doctor of Biological Sciences, Chief Researcher, Director of D.D. Savvinov Institute of Applied Ecology of the North 

Yakutsk

A. N. Tikhonov
M.K. Ammosov North-Eastern Federal University
Russian Federation

Tikhonov Aleksey Nikolaevich – Candidate of Biological Sciences, Leading Researcher of the Laboratory “P.A. Lazarev Mammoth Museum” of D.D. Savvinov Institute of Applied Ecology of the North 

Yakutsk