The article discusses two bioart projects that bring the symbolically core human substances of blood, sweat and tears into technologically mediated relationships with plants and fungi to explore human kinship with other species: Tarah Rhoda’s BS&T (short for ‘blood, sweat and tears’) and OurGlass, and Saša Spačal’s MycoMythologies: Patterning. The article analyses the art projects through the lens of the molecular gaze and different perspectives on kinning, bringing anthropological conceptualizations of kinship together with Haraway’s pathways to connect with other species. (...) How can bioart use technologies to explore interspecies kinship through a molecular gaze? And may such artworks contribute to the toning down of human exceptionality in the face of a precarious future? We find that artworks providing a molecular gaze on interspecies biological processes may risk a decontextualized approach to complex relational processes but may also create new visions of filiation even with biological organisms imagined to be genetically distant from humans, thus spurring awareness of the fragile interrelationships among species. (shrink)