You prolly thought about a single, current, whole race, within our human race, going extinct one day before, correct? But do you ever give thought to, not a race extinction, but an 'attractive looks' extinction with humankind? Like thinking one day no human being shall look attractive to any other human being here. How would the world go on with human beauty extinct? For the moment, imagine no more humans that are cute, nice, handsome, adorable, admirable, beautiful, gorgeous, elegant, fine, hot, sexy, pretty, good, great, dreamy, and etc. of the alike words that would imply humanly attractive... Would be such a down and spiceless and ugly state for humans. So the question is then: What can science and technology do, now or later, to prevent our humankind's 'attractive looks' from going extinct?
Umm attractive features have to do with your genes. so how would these features just go extincted or how would some outside source affect or solo target attractive features in the human genetic make up?! I'm sure nothing is out of the realm of that possibility but it seems a bit far fetched. To answer your question, doctors are able to change human features at/during the fetal (maybe a little before then) stage on pregnancy. So things like height, face structure, physic, eye color etc can all be altered to ensure "proper" human development. However at the moment it is deemed unconstitutional so they aren't allowed to actually practice such techniques on the general public.
I think if it were to occour it might not be such a bad thing, People would adapt to the new environment (Lord knows I've seen examples of those who already have ) and simply learn to appreciate the inner beauty of a person more. Besides, I think that while the Media has done a good job of promoting an ideal concept of "what Beauty is", I'm sure when individually examined, different people are attracted by different physical characteristics. Just look at how the concept of beauty has evolved since the Rennisance for example when the rule of the day was if you were Thin, you were a sickly, starving Dog, whereas those with more cushion for the pushin' were all the rage in so far as "The Public consensus" was concerned. I dunno, mabey I'm missin' yer point or something?
Evolutionary biologists are beginning to understand a lot more about the role pheremones and body odour plays in sexual attraction. Recently, they found a link between the body odour a woman looking for a faithful partner emits is more attractive to guys with a slightly lower blood concerntration of testosterone. The upshot of this being: A woman looking to "nest" (settle down an raise kids) needs a more faithful partner who will stay with her for the medium to long term. Men with lower testorsterone have a slightly lower sex drive and are statistically more likely to be faithful. So the pheromone is doing it's job in bringing compatible people together. Likewise, according to the same study, women who are looking to "nest" have a biological imperative that is driven by hormones which makes them more attracted to men with with rounder facial features and smaller hands/feet. Again, these features indicate a lower concerntration of testosterone in the male. So, if our bodies stopped producing these chemicals, we might be in trouble. However, scientists have also found ways to artificially make them, so eventually, it's plausible, you will be able to buy these scents and pheromones and then put them on yourself before going out at night, in such a way as to attract your perfect partner. As a fan of trial and error, I find this a bit scary. Failing this...masses and masses of porn has been produced over the years. If people stopped having sex, it wouldnt spell the end of the human race: You could find a suitable partner, get the guy to supply a "sample" (with the help of said porn) and turkey baste away.....
There are also the options of Glory Holes & Light switches. lol And IIR there are already a few of these phermone enhanced perfumes & body sprays on the market.
Oh snap, wheredya get that snapshot of my Neighbors nasty assed loudmouth of a wife from?? You know Bob?!?