There is a missing link between our understanding of teaching as high-level social phenomenon and teaching as a physiological phenomenon of brain activity. We suggest that the science of human interaction is the missing link. Using over one-million days of human-behavior data, we have discovered that "collective activenes" (CA), which indicates…

There is a large number of relationships between organisms in communities, and these relationships comprise the following types: predation and parasitism, commensalism, protocooperation and mutualism, neutralism, amensalism, and competition. The possible effects of the relationship between two species are that one or the other can benefit (+),…