A new study that shows women prefer well-endowed men also suggests that women's preferences may be responsible for the lengthening of men's penises. The study shows that, over time, women mate with well-endowed men who produced well-endowed spawn.
From The NY Post:
A new study not only shows that women prefer well-endowed men, but suggests this actually may have contributed to the lengthening of penises over time.
“We found that flaccid penis size had a significant influence on male attractiveness,” the University of Ottawa study says.
And, based on that finding, “female mate choice could have played a role in the evolution of the relatively large human male penis.”
In 1859, Darwin's book, On the Origin of Species, explained in detail that, through a process of natural genetic selection and heredity, human beings pass on the most favorable physical human traits to future generations.