Our ways of understanding humans and society have long been based on the human–animal dualism. Social sciences, and especially sociology, have played a central role in producing the narrative in which a qualitative difference between humans and other animals is constructed. Our multidisciplinary collective and research project “Voiko?” was set to examine the challenges of conceptualizing animals in science and arts. We asked if animals can really be disclosed – if certain ways of presenting animals can help us cross the human–animal boundary. In this presentation, I will introduce some findings on how art can challenge traditional, especially sociological, notions of the difference between humans and other animals. I have examined how certain forms of art have crossed the dualistic border between human and animal and tried to approach the lives of other animals and ourselves as animals. My presentation focuses especially on the presentations and presence of seagulls in two live performances: one piece of theatre and one dance performance.