Chordate of the three subdivisions of chordates, all have distinct skulls. They include the hagfish, which have no vertebrae. Michael J. Benton commented that "craniates are characterized by their heads, just as chordates, or possibly all deuterostomes, are by their tails". Most craniates are vertebrates, in which the notochord is replaced by the vertebral column. These consist of a series of bony or cartilaginous cylindrical vertebrae, generally with neural arches that protect the spinal cord, and with projections that link the vertebrae. However hagfish have incomplete braincases and no vertebrae, and are therefore not regarded as vertebrates, but as members of
The Lives of Animals of Animals" appears again in Coetzee's novel "Elizabeth Costello" (2003). Coetzee's novella discusses the foundations of morality, the need of human beings to imitate one another, to want what others want, leading to violence and a parallel need to scapegoat non-humans. He appeals to an ethic of sympathy, not rationality, in our treatment of animals, to literature and the poets, not philosophy. Costello tells her audience: "Sympathy has everything to do with the subject and little to do with the object ... There are people who have the capacity to imagine themselves as someone else, there are people who have