Rats, Mice and Humans

Abstract This paper will introduce the results of a study conducted in 2019 about how humans perceive species they have to live with, despite not wanting to do so—liminal species—, specifically rats and mice. The results presented here are part of a wider study about rats and mice in cities, their relationship with humans, the nuisances they generate as well as the various and important roles they play in the urban ecosystem, introduced at the Gatherings in BIosemiotics 2020. The study originally focused solely on rats, which are in a difficult societal context in France, especially in Paris: due to heat waves, planned works and floods, rats are becoming more and more present on the surface, instead of being invisible underground as they used to be. However, some of the results suggest that a significant number of participants are not completely positive about being able to distinguish between a rat and a mouse. In order to present a more precise and detailed overview, it was decided to study the difference not only between the cohabitation issues humans may have with actual rats and/or mice, but also between the semiotic relationships that humans have with the symbolic rat and symbolic mouse. As such, this paper will present the results for both species, with their similarities and divergences. It shows that a significant part of nuisances and cohabitation issues are more “believed” than factual. The paper focuses on how the cultural and emotional backgrounds of participants influence their semiotic relationship with these species, and how the perceived nuisances, threats or issues can vary according to these parameters. This study aims to develop a better understanding of the different elements that play a part in issues of cohabitation between humans—especially urban humans—and liminal species—especially rodents. It will show how some of the nuisances can be addressed, not by coercive methods on the actual animals, such as extermination, repellents or removal, but through semiotic work and education on the symbolic animal, its related myths, superstitions, fears and phobias.