International audienceThe use of the living as a medium in art increased after the Second World War. During the 1960s, some artworks were related to an ecological consciousness, or to the beginnings of computer science, which was associated with biology at this early stage. Both of these two modes of using the living are now finally together, in what is called biotechnological art. Defining the living is a deeply political issue, as we may see, for instance, in the problematic of animal rights, defended by the environmentalist movement. When does life begin? What is specific to human life? What is the value of life? As Hans Cova has written, “instead of changing the world at all costs, it would be better to ensure that it doesn’t disappear ...