Penis Size - Is there a biological reason for different penis size?

[Luv_Trail]

Why is it that some men have large ones and some men don't. It doesn't seem to have any correlation with being more or less fertile. Out of all the species of Ape, humans have the largest penises and for some reason our testicles aren't as large as other apes. Is it because, as a species, Homo Sapiens is still new? All other mammal species have been on Earth before we have and most looked exactly as they do today as they did when we were still hairy little Australopithecus. There aren't elephants or horses with big penises and some with small. They are all the same.

I know some of you guys are going to make a mockery of my questions but I honestly started this thread to see if I could really get some good scientific answers to my question. And really I guess the root to my question goes beyond penis size but more about human biology in general. Why do some women have large breasts and others don't? Why don't they come into estrus like other mammals do?

 

[JackFTwist]

there is no such thing as "one size" in nature

there is a range that includes the norms and the means but there are always those that exceed on either side

the assumptions in your question are not valid because all the things you are cite are things that are within the normal ranges

 

[Luv_Trail]

I was looking for answers to the questions not judgment on them... thanks for nothing.

 

[WYSIWYG]

In did a google search and came up empty, sorry. I would "assume" that the difference is we evolved form the, and not the elephant, or horse. And while we are a mammal, our evolution made us different I guess....I think variety is better than all of us being the same. besides wouldn't sex be boring if we were all the same?

i know that these comments do not answer any of your questions, sorry mate, but even an internet search brought no answers for you or me.

 

[Orlandude]

I think it's all in the genes. That doesn't necessarily mean that your penis (or breasts) would match those of your mother or father but somewhere along the line, it's in the blood and that plays a major role in how you are "endowed"...or not.

 

[DarkHelios]

There aren't elephants or horses with big penises and some with small. They are all the same.

There probably are. It's just that a small penis for an elephant or a horse is still a pretty big penis when you compare it to a human's.

 

[oz_doc]

Re: Penis Size - Is there a biological reason for

I have to agree with jacktwist. I think the premise of your question is flawed, you can rudely dismiss my response as you have his if you'd like.

I dont think it is at all true that all horses have the same size penises or elephants, everything in natural systems occur along a spectrum of normal, the majority will lie close to the middle, some will be considerably larger or smaller than average and the very rare exception will be very large or very small. the determinants of physical charecteristics are largely genetic with some environmental factors (eg in utero hormonal exposure) playing a role. The same characteristics apply to breast tissue as well which is also strongly affected by the hormonal environment both during puberty and throughout life as evidenced by the swelling of breasts during pregnancy.


Finally your last point, what makes you think human females dont have an estrous cycle, polite sensisibilites mean that we jsut call it the reproductive cycle so not as to dehumanize the process, the estrous cycle describes the physical and hormonal phases that occur as ovarian follicles mature to ovulation and are then receptive to fertilization and implantation. This process absolutely accurs in a very similar way in humans, social factors come into play to prevent some of the behavioral features of the animal estrous from occuring such as the lordosis reflex, as you can imagine if women receptive to fertilization started stickin their asses in the air there may be some social consequences.

hope you can look at this and jacktwists replies not as attacks on you but real responses to the question that you asked.