The watercolor series Untitled depicts 24 different instances of a human hand touching a dog‘s head. Petting a dog can trigger a mutual release of the feel-good hormone oxytocin, which, from an evolutionary biology perspective, is essential for the development of emotional bonds—whether between mothers and their babies or between humans and dogs. At the same time, petting occurs without the dog’s consent. When observed closely, this common human behavior can appear ruthless. It is carried out with a casualness that would be considered intrusive if directed toward another person. In the touch of a dog‘s head, a millennia-old history of co-evolution unfolds, revealing a complex relationship of inequality, power, and love between humans and non-human animals.