Evolution of the foreskin: Difference between revisions
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== Evolution == | == Evolution == | ||
===Natural selection=== | ===Natural selection=== | ||
Charles Darwin (1859) has done an admirable work in introducing the principle of ''natural selection'' to explain evolution.<ref>{{REFbook | [[Charles Darwin]] (1859) has done an admirable work in introducing the principle of ''natural selection'' to explain evolution.<ref>{{REFbook | ||
|last=Darwin | |last=Darwin | ||
|first=Charles | |first=Charles | ||
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=== Morphology === | === Morphology === | ||
The [[prepuce]] has been well conserved by evolution.<ref name="cold-mcgrath"/> In primates, the [[foreskin]] has been present in the genitalia of both sexes of mammals for at least 65 million years and likely has been present for over 100 | The [[prepuce]] has been well conserved by evolution.<ref name="cold-mcgrath"/> In primates, the [[foreskin]] has been present in the genitalia of both sexes of mammals for at least 65 million years and likely has been present for over 100 million years of evolution, based on its commonality as an anatomical feature in mammals.<ref>{{REFbook | ||
|last=Martin | |last=Martin | ||
|first=Robert D. | |first=Robert D. | ||