Bipedalism is a demanding and risky strategy. It means refashioning the pelvis into a full load-bearing instrument. To preserve the required strength, the birth canal in the female must be comparatively narrow. This has two very significant immediate consequences and one longer-term one. First, it means a lot of pain for any birthing mother and greatly increased danger of fatality to mother and baby both. Moreover, to get the baby's head through such a tight space it must be born while it's brain is still small - and while the baby, therefore, is still helpless. This means long-term infant care, which in turn implies solid male-female bonding.
Let us begin by giving all proper respect to what neuroscience can tell us about ourselves: it reveals some of the most important conditions that are necessary for behavior and awareness. What neuroscience does not do, however, is provide a satisfactory account of the conditions that are sufficient for behavior and awareness. ... The pervasive yet mistaken idea that neuroscience does fully account for awareness and behavior is neuroscientism, an exercise in science-based faith. ... This confusion between necessary and sufficient conditions lies behind the encroachment of βneuroscientisticβ discourse on academic work in the humanities...