re: #1 Backwoods Sleuth

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He has no understanding of evolution by natural selection. This is almost Lamarkian in its view (ie giraffes have long necks because they stretch). The fetus does not know how it will be born. And c-sections are really never done because the baby has a big head.

But we have evolved a way for big brained babies to get out the birth canal. Thatis not having a fused skull so it is very maleable.

Heck, I think the major problem is not large skulls but shoulders that are too wide. The infant needs to make all sorts of contortions to get the shoulders past the canal.