New research apparently shows that women evolved extra vertebrae to deal with upright walking and pregnancy. But, does it really show that? I say, “No,” at least not by modern evolutionary theory.
MET is based on directionless modification with selection pressures acting on those modifications. That is not, however, what we are seeing here:
Working at the University of Texas with Liza Shapiro, an associate professor of anthropology who studies the primate spine, Dr. Whitcome found that the differences between male and female spines do not show up in chimpanzees. That suggested that the changes occurred in response to the problems caused by walking upright.
The changes occurred in response to walking upright? Well, then that would not be directionless, but directed. This is not evolution in action, it is ID science. Purely directionless modifications would have happened regardless of what the need was. Yet, that’s clearly not what happened here. It’s as if the mechanism of change sensed the problem and then overcame it. This is not directionless activity, but directed. And, the best inference here is that an intelligent agent was responsible for the change. ID science is the better explanation.