Semen Displacement as a Sperm Competition Strategy in Humans

We examine some of the implications of the possibility that the human penis may have evolved to compete with sperm from other males by displacing rival semen from the cervical end of the vagina prior to ejaculation. The semen displacement hypothesis integrates considerable information about genital...

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Bibliographic Details
Main Authors: Gordon G. Gallup, Rebecca L. Burch
Format: Article
Language:English
Published: SAGE Publishing 2004-01-01
Series:Evolutionary Psychology
Online Access:https://doi.org/10.1177/147470490400200105