Posthumanist orientations have underlined the need to foster non-hierarchical relations with other-than-human beings to adequately attend to planetary crises and help life to survive and flourish. Since a posthumanist critique towards natural sciences has mostly leaned on questioning the premise of human subjects making sense of objectified nature, little effort has been made to explore if and how scientific research and posthumanist approaches might intersect and co-exist without abandoning their respective aims. In this paper, we analyse a case of ecological citizen science inquiry on urban rats to explore theoretical and practical opportunities for environmental education that arise from bridging the posthumanist call for attentiveness towards multispecies worlds with ecological research endeavor. We reconceptualize ecological inquiry as sharing "atmospheres" with other animals as well as through its "material aspects" to articulate conceptual tools to disrupt the subject-object division of knowledge creation between humans and other animals.