The conservation status of the Eastern Crane population and the compliance of the current state of this population with the criteria’s requirements for Category 2 of the Red Data Book of the Russian Federation assigned thereto are considered. Based on our analysis of the published data of the counts of this population number for 19 years during autumn migration in Russia and for 45 years at wintering grounds and the last few years at migration stops in China, it is proposed to consider returning this population to its former status, namely, Category 3 of the Red Data Book of the Russian Federation.

The article presents some prerequisites for the formation of a new theory of relations between species groups of mammals, including humans. Key elements of the theory are considered, including the connection between quantum decoherence in complex organic molecules and Jung’s postulates of the collective unconscious, with the extension of the latter to the possibility of explaining the paradox of instincts in higher animals. Data on experimental confirmation of the mechanism of wave function collapse in relation to living organisms are presented.

Based on V.I. Vernadsky’s teaching of the biosphere and modern scientific data, an attempt was made to analyze the mechanisms of the dynamics of modern global processes using the example of climate changes. Possible causes of the warming, both natural and anthropogenic, observed in the last century are considered. It is shown that it is the increase in temperature that causes the increase in the concentrations of carbon dioxide and methane in the atmosphere, and not vice versa, as follows from the greenhouse effect hypothesis. This seems to be the main cause for the low effectiveness of any international efforts to stabilize the climate. The course of natural processes, as well as the evolution of the biosphere as a whole, has an unstable, cyclical nature, running according to its own laws. Particular attention is paid to V.I. Vernadsky’s doctrine of the biosphere, his views on the role of reason and scientific research in solving problems inevitably arisen in the course of evolution on Earth, caused by the rapidly developing, from a historical standpoint, humanity. Scientific research is a reliable defender of both the interests of mankind and the biosphere as a whole. This was V.I. Vernadsky’s basis of his positive outlook on the future of our civilization and the biosphere.

The key principle of the Arctic development should be nature-saving nature management. The agro-landscape-ecological zoning of the Far North fodder ecosystems developed at the V.R. Williams Federal Research Centre for Forage Production and Agroecology is aimed at this very goal. About 90 % of Murmansk District is occupied by reindeer pastures, in some places disturbed as a result of their irrational use by reindeer herders, mining, construction, and transport; the ecological state of the territory is tense. In Yamal District, reindeer pastures occupy 65 % of the area; the ecological state of the ecosystems is tense or even critical in some places. The area of lichen tundras has decreased by 3,5–4 times, total fodder reserves in lichen-moss tundras, in those areas where they are still preserved, have decreased by 3–10 times. The total reserves of green grass fodder and shrubs has decreased by 1.5–2 and 2–8 times, respectively. Desertification of highlands (bare sands occupied about 6 %) and waterlogging of lowland areas is going on. Technogenic impact on tundra ecosystems disturbs soil and vegetation cover, hydrological regime. Waterlogging of lowlands due to thermoerosion is starting. It is necessary to find compromises between economy, ecology, social and national interests.

The exposition of the department "Natural Zones" in the Earth Science Museum of Moscow State University (25th floor, halls Nos 18–20) presents 15 full-scale exhibits of dry 3D fragments of biogeocenoses, namely: spotted tundra; forest tundra; swamps: flat-hummocky tundra, oligotrophic upland and mesotrophic lowland sedge; spruce-green grass; grass-grass and tipchak-grass steppes; subtropical mountain forest; alpine meadows; semi-deserts; deserts – clay, wormwood-solyanka and ilak belosaksaulnik on ridge sands; and savannas. These exhibits demonstrate the interaction of the main natural components characteristic of the respective climatic conditions (soils, flora, and fauna). The article gives a description of the animal species represented in the exposition based on a visual examination of zoological exhibits and a study of their nomenclature and taxonomic changes.