Caesarean births 'affecting human evolution'

In the UK, about one in four babies is born by Caesarean The regular use of Caesarean sections is having an impact on human evolution, say scientists. More mothers now need surgery to deliver a baby due to their narrow pelvis size, according to a study. Researchers estimate cases where the baby cannot fit down the birth canal have increased from 30 in 1,000 in the 1960s to 36 in 1,000 births today

[kmiura]

ブルドッグと一緒ですな。

[imakita_corp]

ほんまかいなｗ施術後の対応技術の発達違うんけ？っと思うたが読み違えたっぽい