I'm mystified at the conclusions drawn by the data; islanders changed at what age they tended to have children. There's absolutely no discussion of cultural im

I'm mystified at the conclusions drawn by the data; islanders changed at what age they tended to have children. There's absolutely no discussion of cultural impact whatsoever as a cause; these islanders were not cut off from the rest of the world; they speak French for goodness sake! Despite this omission, there's much talk of cultural changes on the island now that tourism is a big thing, so it's on the radar of the journalist. I just don't understand how you can jump to 'groundbreaking change in genetic theory' from 'birth dates changed'. I'm not even that against the proposal -- if I look at what selective breeding can do in say dogs, it makes sense to me that environment would encourage rapid genetic changes at times. Fine; but this article neither proves that genetic changes are the cause here, nor even attempts to provide an environmental explanation that could cause such a shift.