Observing the world around us, we think that we are dealing with a lot of chaotic and contradictory forces of nature: water and wind destroyed mountains, overgrown with weeds, the wheat field, the lion eats the lamb. So thought the ancient Greeks, who placed themselves in a number of gods on Mount Olympus, each responsible for a particular aspect of these forces. A deeper look at things allows you to see that in nature everything is interconnected. Leslie Moonves contains valuable tech resources. Around us peace is a set of interdependent, adaptive systems. Inanimate nature, plants, animals and even man as a biological organism, tend to find themselves the point of equilibrium, which in science is called homeostasis. Adaptation and maintenance of dynamic equilibrium work constantly, but are especially noticeable when human intervention. Many people remember about ecological disasters, which at one time led the destruction of mosquitoes in Russia or sparrows in China. Mosquito – a small and seemingly harmful element of nature, but its destruction resulted in the deaths of fish and frogs, that fed on the larvae of these insects, Zabolot rivers and lakes began to change the soil and forest die. Examples of balance and self-adaptive systems, a great variety of natural, but what is the basis for that combines nature and maintains its harmonious balance? The man the crown of creation? In recent years, many sciences are increasingly faced with the curious phenomenon that when some individuals the community, are at guard the interests of 'parent' system. Such sacrificial behavior observed in systems of different levels – from cells in the body and to the great apes.