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
Animals Are Beautiful People desert, with the narrator saying: "You'd think nobody could make a living here." But the film proves the opposite and shows the lives of the animals that live there. The narrator concludes: "But to the Oryx and the little creatures of the Namib, this waterless, hostile desert is paradise." The second third of the film shows the rich life in the Okavango River and Okavango Delta (see Marula, below), and the last third of the film focuses on life in the Kalahari desert. One scene depicts baboons, elephants, giraffes, warthogs and other African animals eating rotten, fermented fruit of the