The human culture presents itself as an immense accumulation of meanings, its unit being a single meaning. The co-evolution of humans as living subjects of culture and meanings as its growing substance is the essence of all human history.

In its origin, meaning is a mutual adaptation of the natural environment and the human species living in it. In the course of this mutual adaptation, the natural environment became a toolbox for human self-reproduction, and the behavior of protohumans became its practice. Meaning is a mediation, a niche in the habitat created by the human species for survival. Humans evolved from animals because and when animals had to resort to extra-biological, meaning mechanisms of self-reproduction. Biological traits are transmitted through genetic inheritance, and cultural traits are transmitted through communication with other people, primarily in childhood. As is known, it is impossible to teach animals (including monkeys) to speak, since their body and behavior do not have the properties necessary for this. And the incidents with the feral children (Mowgli) show that it is impossible to teach a person over 12 years of age to speak, who as a child was completely isolated from communication with other people.

In the early stage of human evolution, that of natural selection, the very first meanings functioned as a continuation of the animal organs of hominids and as a differentiation of their animal signals. Just as a stick or a stone was an extension of the hand of prehistoric man, the various calls or gestures that warned of different dangers (e.g., from the ground or from a tree) were variations of animal signals. In this early stage, meanings were only a continuation of animal behavior, and their transmission occurred through so-called “animal traditions.”

As Vaclav Smil notes, the earliest feature that distinguished hominids from other animals was not the larger brain or toolmaking, but the structurally unlikely transition to upright walking, which began about 7 million years ago. Compared to chimpanzees, it saved 25 percent of energy, freeing the hands for tool-use, mouth and teeth for a more complex system of sound signals, i.e. proto-language. These changes demanded a larger brain with energy requirements three times higher than the brain of a chimpanzee (Smil 2017, pp. 22-3). Of course, upright walking itself demands an explanation that cannot be reduced to an unlikely accident. However, as Joseph Henrich notes, the precise evolutionary sequence in which meanings arose—gestures, vocal speech, social norms, tool-use—is not crucial, since cultural evolution created significant genetic pressure in all directions. If the freeing of the hands led to the development of language, then the evolution of tongue freed the hands for using tools, preparing food, and maintaining balance when chasing prey (cf. Henrich 2016, p. 252).

Culture as an accumulation of meanings begins when an animal species goes beyond the limits of natural selection or mere adaptation to the environment and begins to adapt the environment to its needs, that is, it forms its own niche in the environment. The formation of a niche means, first, that the animal’s organs and their functions go beyond the animal’s body: part of the environment becomes a “continuation” of the organism. An ape, for example, takes a stick to “extend” its arm and pull termites—its favorite food—out of a termite mound. Second, the organism gradually changes due to its own niche-altering actions: for example, an increase in brain size in humans with the development of meaningful actions. The evolution of meanings is the evolution of indirect, roundabout, instrumental and symbolic behavior aimed at building a niche within nature, a