The Zoological Institute and Museum of the Academy of Sciences of the USSR possesses rich collections of skeletal remains of Pleistocene animals from the entire territory of the Soviet Union, as well as a remarkable series of soft tissue remains from the Siberian permafrost area. Traditionally the Institute is mainly concerned with the study of fossil elephants and the woolly mammoth. One skeleton of an individual of Archidiskodon (Mammuthus) meridionalis and three skeletons of Mammuthus primigenius are exhibited. The carcass-finds of the mammoth baby from Magadan, the Berezovka mammoth, Equus lenensis (soft parts of the head) and Coelodonta antiquitatis (soft parts of the head and keratin horns) can be considered unique.