Question

Choose a particular human trait and briefly explain how you believe it would have evolved by natural selection?

Answer 1

According to Darwin, the process  in which groups of organisms change in their heritable traits over generations, is kniwn as “descent with modification."Today we call it evolution.

Women's fertility ends at about the same age that fertility ends in other females of the great apes; but while our closest living relative became decrepit and die soon, female humans can remain healthy and productive well past menopause.This is due to cooperative breeding – the grandmother, older siblings, and other members of the extended family can help mothers to raise their children in a healthy way. Increased maternal age at reproduction is often associated with decreased offspring performance in numerous species of plants and animals, including humans.Wherever fertility senescence occurs, selection for maternal effects will tend to decline more rapidly with age than selection for fertility.