Natural selection and reproductive behavior in Italy, 1930-1993.

Abstract excerpt

We studied the relaxation of natural selection affecting the newborn population in Italy between 1930 and 1993 due to the decrease in the stillbirth (mortality) rate and the simultaneous changes in women's reproductive behavior (strategies). Results show that, apart from a drastic overall reduction, the stillbirth rate has varied among different groups of neonates. The present stillbirth rate of less than 5 per...

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