Stigmergy: https://en.wikipedia.org/wiki/Stigmergy
Biosemiotics: https://en.wikipedia.org/wiki/Biosemiotics
Jakob von Uexküll: https://en.wikipedia.org/wiki/Jakob_von_Uexk%C3%BCll
Thure von Uexküll: https://en.wikipedia.org/wiki/Thure_von_Uexk%C3%BCll