What factors contributed to the separation of man from the natural world?

A person is distinguished from the natural world by upright posture, hands are more mobile, the structure of the brain is of a lower density of packing of neurons in the cortex than in animals, articulate speech. In humans, thinking is abstract-logical, while in the animal world, thinking is distinguished by concrete images. A person is also distinguished by the presence of self-awareness, adherence to norms of behavior, the creation of tools, and prolonged concentration of attention.