 Since the mid-1990s, Singer's art has explored the human and non-human animal relationship, driven by her concern with the ethical and epistemological consequences of humans using non-human life, and the role that humans play in the exploitation and destruction of animals and our environment.Singer sees the boundaries separating other species from humans as permeable.She sculpts in various media including modelling clay, wax, fibre, ceramics, gemstones, and vintage jewelry, as well as wool and silk.