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Sperm competition - Wikipedia

Sperm competition is the competitive process between spermatozoa of two or more different males to fertilize the same egg during sexual reproduction.

Human sperm competition - Wikipedia

Sperm competition is a form of post-copulatory sexual selection whereby male ejaculates simultaneously physically compete to fertilize a single ovum.

Human sperm competition: ejaculate adjustment by males and ...

Abstract. Sperm competition theory argues that the number of sperm inseminated into a female by a male is a trade-off between two opposing pressures.

The Human Sperm Competition - softpedia

The Human Sperm Competition. ... human male has developed mechanisms to ensure the transmission of his genes during post-copulation as well, a biological function ...

Human sperm competition: testis size, sperm production and ...

We examined the claim that sperm competition is an important selection pressure operating in human populations. We recruited 222 men and 194 women to complete a

Human Sperm Competition eBook by Robin Baker ...

Read Human Sperm Competition Copulation, masturbation and infidelity by Robin Baker with Kobo. Since the 1970s, behavioural ecologists and evolutionary biologists ...

Pornography, sperm competition, and behavioural ecology ...

Sperm competition occurs when a woman has sex with two or more men within a ... They are the co-authors of the paper ‘Human sperm competition in postindustrial ...

Sperm Competition in Humans: Classic and Contemporary ...

Available in: Paperback. In species with internal fertilization, sperm competition occurs when the sperm of two or more males simultaneously occupy the

Sperm Competition in Humans: Classic and Contemporary ...

In species with internal fertilization, sperm competition occurs when the sperm of two or more males simultaneously occupy the reproductive tract of a female and ...

Human penis-shape and sperm competition / Boing Boing

In The human penis as a semen displacement device, a 2003 paper published in Evolution and Human Behavior, a group of SUNY Albany psych researchers ...


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