The paper is devoted to a re-examination of the issue of the Human-Animal boundary in
the light of the idea that the boundary has been renegotiated every time humans has perceived
a challenge to their supremacy in the hierarchy of beings. By making reference to
the Darwinian framework and also to the reflections developed by the philosopher and anthropologist
Raymond Corbey in his book The Methaphysics of Apes. Negotiating the Animal-Human Boundary, the paper invites to focus the attention to the necessity of reestablishing
some balance between humans and animals by doing reference to the quality of
life of all living beings.
