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Umwelt – the concept, formulated in 1909 by the biologist and philosopher Jakob von Uexküll, in an attempt to explain the fact that different animals in the same ecosystem react to different external signals. Creatures that have acute hearing and vision, perceive the world differently than beings endowed with an excellent sense of smell, or interacting with the external environment by means of ultrasonic waves and electric fields. The new term was intended to describe the difference between the perceptions of the surrounding world, which is common for humans as well.
Each of us has his own …