First of all, almost any species is a participant in the relationship between representatives of its own population; not a single species is known that lived completely in isolation. Each population of any species, in turn, is a collection of individual individuals, which makes the species similar to a biosystem in terms of the inclusion of many different organisms in it.
Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.