Scoliosis facilitates terrestrial feeding from grasses, trees, and bushes. Given the many benefits of bipedality which depends on a particularly formed spine, it is likely that selection for bipedalism played a large role in the development of the spine as we see it today, in spite of the potential for "scoliotic deviations". According to the fossil record, scoliosis may have been more prevalent among earlier hominids such as Australopithecus and Homo erectus, when bipedality was first emerging. Their fossils indicate that there may have been selection over time for a slight reduction in lumbar length to what we see today, favoring
Body without organs But every actual body also has a virtual dimension: a vast reservoir of potential traits, connections, affects, movements, etc. This collection of potentials is what Deleuze calls the BwO. The full body without organs is "schizophrenia as a clinical entity" ("Anti-Oedipus," p. 310). This drop in intensity is a means of blocking all investments of reality: "the unproductive, the sterile, the unengendered, the unconsumable" ("Anti-Oedipus," p. 9). Unlike other social machines such as the Body of the Earth, the Body of the Despot or the Body of Capital, the full body without organs cannot inscribe other bodies. The body without