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Penis size: An evolutionary perspective

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Penis size: An evolutionary perspective

http://www.theguardian.com/science/…omen-penis-size

Anonymous, age and sex unspecified
Dear Carole, Why are women so obsessed with the size of a man’s cock – wanting ones 6 inches and over and kicking others aside when they really should be concentrating on the emotional connection and love being shared, putting the size of the man’s cock right out of her mind?

Ask Carole: Chimpanzee wearing spectacles
Carole replies:
The origins of the primate sex drive go back more than 60m years to the late Mesozoic era when the first primate evolved. A lot of sex has taken place since then, and a significant proportion has been motivated by female choice between rival males.1 Female primates can experience multiple orgasms, and it has been theorised that ancestral hominid females sought out males who would sexually satisfy them. Through the mechanism of sexual selection, this will have increased penis size and altered structure.

Today, the average erect gorilla penis is 3cm (1.25 inches) long, the average chimp or bonobo penis comes in at around 8cm and the average human penis stands at around 13cm. Most primates, including chimpanzees, have a penis bone and achieve erections through muscle contraction.2 The human penis has evolved the unusual system of vasocongestion to achieve erection, making the erect organ far more flexible than that of other primate species.

This unique adaptation is thought to have been selected through female mate choice, and by the time Homo erectus arrived on the scene, the hominid penis was significantly longer, fatter and more bendy than our ape cousins’. It has even been theorised that bipedalism evolved in humans to allow the fashionably new, larger, flexible penis to be displayed to discerning females.3

Interestingly, while the human penis is the biggest of all the ape species in length and girth, both in absolute terms and as a proportion of body size, the human testes are not. As a proportion of overall body size, chimp and bonobo testes are twice as large as human testes, whereas gorilla testes are half the size. Why?

Correlations can be found between primate mating systems and male genital anatomy.4 In multi-male/multi-female groups, males must compete to reproduce and frequently the competition takes place inside the female reproductive tract. The more sperm a male produces and ejaculates inside a female the greater the probability that one of his will fertilise the ovum. Female chimps or bonobos in oestrus often mate with several different individuals, so males must reproductively compete in this way and larger testes will therefore confer greater reproductive fitness.

By contrast, female gorillas live in harems and don’t often get a chance to exercise a choice between mates, though occasionally a female and a male from outside the group may risk it. The impressive 200kg (400lb) silverback gorilla does have the smallest penis and testes of all male apes, but his massive canines and biceps and his controlling, jealous temper allow him to intimidate and fight off potential competitors.

Human testis size indicates that males evolved under conditions in which their sperm competed inside females, but perhaps not to the same extent as chimp sperm. But the larger human penis suggests that hominids needed to keep females with choice sexually satisfied. Ancestral females would have experienced a sexual freedom denied in Western cultures today and it has been suggested that our ancestors went through a period of matriarchy and enhanced female choice.5

When compared with patriarchal chimps, the matriarchal bonobo is a far more sex-oriented ape. Enthusiastic females initiate both hetero- and homosexual activity, particularly when aggression begins to surface, resulting in satisfied, contented and peaceful bonobos. Patriarchy, on the other hand, correlates with a lack of openly displayed female choice.

Women with choice are not all “obsessed with the size of a man’s cock”. Women are as aware as men that to build a stable relationship you need trust, shared interests and the ability to keep each other amused. But a woman is not going to “put the size of a man’s cock right out of her mind”, because she can’t. Females have an evolved interest in the size of a man’s penis, which has been sexually selected for its size and shape. But humans are also selected for creativity – we are highly innovative, imaginative apes. Accordingly, women’s minds can be aroused by creativity and being sexually imaginative can be physically arousing, adding satisfying metaphorical inches to one’s love life.

Originally Posted by MushroomHook
Human testis size indicates that males evolved under conditions in which their sperm competed inside females

Reminds me of someone claiming that the shape of the glans is designed by evolution so that it will “scrape out” leftover semen from the the vagina placed there by other males, thus making it more likely for yourself to transfer your genes to the next generation.

I don’t hold this theory for very likely though, but looking at your dick and thinking of it is sort of amusing.

Instead of mating based theories, I wonder if any researchers have examined whether evolution (the opposable thumb w/ pad-to-pad grip) allowed humans to stretch and jelq more efficiently.


11/20/2011: BPEL: 6", MEG: 4.75" (goal BPEL: ~7", MEG: 5.25")

5/9/12: BPEL: 6.5", MEG 5" (goal BPEL: 7.25", MEG: 5.5")

3/5/13: BPEL: 6.875", MEG 5 5" (max goal BPEL: 7.5", MEG: 5.75")

She didn’t mention that it’s the same with human female breasts. They are also (usually) larger than any of the other primates’, and their size is completely unecessary to perform the task of feeding a baby.

It’s almost refreshing to see someone in a fairly serious setting just blatantly and unabashedly state that women are wired to care about size. I guess it’s easier when she can hide behind science. ;)

Quote
The impressive 200kg (400lb) silverback gorilla does have the smallest penis and testes of all male apes, but his massive canines and biceps and his controlling, jealous temper allow him to intimidate and fight off potential competitors.

If PE doesn’t work for you, just get canine implants, act like a twat, and do enough steroids and gym to get to 400lb and you are sorted…. :)


Heat makes the difference between gaining quickly or slowly for some guys, or between gaining slowly instead of not at all for others. And the ideal penis size is 7.6" BPEL x 5.6" Mid Girth.

Basics.... firegoat roll How to use the Search button for best results

So horses are more evoluted than Humans?

Did that woman call us “creative apes” ?

Originally Posted by firegoat

If PE doesn’t work for you, just get canine implants, act like a twat, and do enough steroids and gym to get to 400lb and you are sorted…. :)

And then go to jail for beating up anyone who looks at your girlfriend. :)

Originally Posted by marinera
So horses are more evoluted than Humans?

Huh?

Yes, huh.

Originally Posted by MushroomHook
Huh?

The woman said we are evolved apes and thus have bigger penises. Horses have huge penises so under that theory that would mean they’re more evolved :)

Did you know that a human penis is more like, structurally, to that of a horse than to apes?


Stats:

08-12-2014 BPEL 8.875, EGMS 6.6, EGB 7.25, EW 2.101, EV 30.331, FL 6.75, FG 5.6, Glans Girth 6.5p

The Argentine Lake Duck must be one of the most evolved creatures in the universe…. A dusk with a 16” penis! :)

http://www.todayifoundout.com/index…with-its-penis/

And some male barnacles have a penis 50x the length of their body!


Heat makes the difference between gaining quickly or slowly for some guys, or between gaining slowly instead of not at all for others. And the ideal penis size is 7.6" BPEL x 5.6" Mid Girth.

Basics.... firegoat roll How to use the Search button for best results

A master’s degree in ‘evolutionary psychology’? I couldn’t even imagine a discipline with such a dumb name actually exists.


Last edited by marinera : 11-28-2013 at . Reason: grammar

Originally Posted by marinera

A master’s degree in ‘evolutionary psychology’? I couldn’t even imagine a discipline with such a dumb name actually exists.

Good point!


Heat makes the difference between gaining quickly or slowly for some guys, or between gaining slowly instead of not at all for others. And the ideal penis size is 7.6" BPEL x 5.6" Mid Girth.

Basics.... firegoat roll How to use the Search button for best results

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