Slashdot Mirror
Sperm Counts Among Western Men Have Halved In Last 40 Years, Says Study (theguardian.com)
New submitter flote shares a report from The Guardian: Sperm counts among men have more than halved in the last 40 years, research suggests, although the drivers behind the decline remain unclear. The latest findings reveal that between 1973 and 2011, the concentration of sperm in the ejaculate of men in western countries has fallen by an average of 1.4% a year, leading to an overall drop of just over 52%. The study, published in the journal Human Reproduction Update by an international team of researchers, drew on 185 studies conducted between 1973 and 2011, involving almost 43,000 men. The team split the data based on whether the men were from western countries -- including Australia and New Zealand as well as countries in North America and Europe -- or from elsewhere. After accounting for factors including age and how long men had gone without ejaculation, the team found that sperm concentration fell from 99 million per ml in 1973 to 47.1 million per ml in 2011 -- a decline of 52.4% -- among western men unaware of their fertility. For the same group, total sperm count -- the number of sperm in a semen sample -- fell by just under 60%.
Obesisty?
“Common sense is not so common.” — Voltaire
Ha! {wipes off mouse}
The Russians have won. They have made the world a cesspool of distrust, greed, fear and hate.
Easier access to porn. Duh.
Masterbating is bad for you!
vos nescitis quicquam, nec cogitatis quia expedit nobis ut unus moriatur homo pro populo et non tota gens pereat.
Reminds me of the first 5 minutes of Idiocracy... the high-IQ couple with the fertility issue. Meanwhile the overall population is now 7.5Bn and still rising,,, Oh well.
"I bless every day that I continue to live, for every day is pure profit."
Have they done a study to determine if there has been a balancing increase in sperm production by western women?
E Proelio Veritas.
Hormone interfering chemicals sold to you as conveniences and assured safe by corporate-paid liars have shrunk your balls, son.
Don't worry, Republicanism is pretending it's not a problem.
Sarcasm / trollface intended.
vos nescitis quicquam, nec cogitatis quia expedit nobis ut unus moriatur homo pro populo et non tota gens pereat.
My father and both grandfathers always got a full week off each year. I haven't had an entire week off since graduating from college in 1986. Also, they only worked a little over forty hours a week. Other than around Christmas, I don't think I've ever worked that little in any week of my adult life. It takes its toll.
This is hype news. Like Ehrlich and his Population Bomb but now it is the Population Unbomb. Nature massively overcompensated with millions of sperm and only ONE is needed for conception.
Http://www.winfertility.com/sperm-count-pregnancy-rates
sperm counts are are result of hair style? Interesting theory. Have you talked to your therapist about your fears around this?
And by "Interesting" I mean in the same why that {#politician_name} is a {#random_insult} with {his|her|it's} {#random_body_part} {in|up} their {#random_body_part}.
The Russians have won. They have made the world a cesspool of distrust, greed, fear and hate.
Heck, my wife gets pregnant if I look at her too long.
I don't think so. You might want to get a paternity test done on "your" kids.
I don't know if that's redundant or not... These are interesting days....
"File to fit, pound to insert, paint to match" - Aircraft Maintenance 101
It is. But it just means we have to make up the quota with more orgasms.
Someone had to do it.
It's almost as if it's implying men are getting together to count sperm!
I tend to rant.
I also speak french. Oui!
One sperm is enough, doesn't matter if it's 100 or 50 million.
You flunked health class and sex ed, eh?
The shepherds did so well protecting the flock that the sheep no longer believed that wolves existed.
Bruce Lee died in 1973, Robert Shaw -1978, John Wayne - 1979, Steve McQueen -1980, Yul Brynner and Orson Wells - 1985, Lee Marvin - 1987, Tupac -1996, Charles Bronson and Jonny Cash in 2003. When Clint Eastwood and Chuck Norris go it's going to drop to zero.
"Millennials have this really disgusting complexion"
Maybe, but you can't actually tell because of their tats.
The communist plot to dilute our precious bodily fluids has succeeded !
What's been happening with them?
In theory, theory and practice are the same; in practice they're different. (Yogi Berra & A. Einstein)
Probably just the men in the western world getting their balls too hot. No big deal really. Search for "Genital heat stress and semen quality".
He is correct, or haven't you noticed that nobody is claiming that the conception rate has plummeted?
Guns don't kill people; Physics kills people! - John Lithgow as Dick Solomon on Third Rock From The Sun
Another e.g. - I see you say how "fat" he is etc. - do you KNOW that for a fact or are you projecting your own issues onto him?
From the Slashdot page on my website.
There are 10 kinds of people on Slashdot.
Those who see my picture, go back to Slashdot and leave a comment, "You're a fat retard."
And everyone else.
https://www.cdreimer.com/slashdot.html
I demand a recount
We are Dead Stars looking back Up at the Sky
I think contraceptives and family planning has something to do with it. These days, women get to decide when and with whom to have children. Producing an overwhelming number of sperm to outcompete other males' sperm seems to have little to no reward these days. Even if the lady has an affair, she's most likely going to be protected, so there's no gain from the male evolutionary perspective.
So those with low sperm count are just as likely to become fathers, and their genes just as likely to be propagated. In only one generation, the effect should start being observable, and in two generations enough to not be individual variations. The timing seems near perfect.
Now what we need is a sperm count compared to biological fathers. if there's a strong correlation, but still an overall decline, this is far more likely to be genetic than environmental, although a combination is not out of the question.
One sperm is not enough, unless you're making a test tube baby.
In the normal method, you need plenty of sperm to reach the egg and smash down the gates before a single sperm can get inside.
Who'd you outright sizzle w/ facts so badly?
The prick who posted dick pics with my info on Russian image websites. I'm turning that into a YouTube video project.
https://github.com/cdreimer/how_to_takedown_dick_pics_from_russian_image_websites
That is the only logical explanation for this. Women are fucking impossible to deal with anymore. They cannot be satisfied no matter how much money you make, how much you work out, how much stuff you have, or how popular you are. You're never good enough.
It gets to the point that you don't even want to reproduce with them anymore, and so your body's like "whatever, Ima shut down this sperm factory down here and use my energy to get better at minecraft instead."
Not long ago a friend of mine and I were having a beer and he asked me, "you know, my wife thinks you don't like her; you never talk to her and blow her off when she tries to talk to you." And my response was, "she's right." I actually loathe the idea of interacting with females in any capacity. It's actually pretty fucking great, because it's so much less stress in my life. I'm not constantly having to walk on eggshells and jump through hoops.
Drop in men's sperm counts match up perfectly with the rise in feminism. Wonder if rather than due to some type of physical or environmental effect, it could be psychology affect men's sperm counts...
Possibly because it makes you go blind too? :P
Requiem for the American Dream
This is a likely hypothesis - ubiquitous exposure to trace level synthetic chemicals. Many synthetic chemicals have shown estrogenic effects (including a number of plastic ingredients), and cumulative exposure to tiny quantities may be driving this. It is difficult to test though - the exposure is everywhere, and effects may be delayed many years. Is it prenatal exposure, childhood exposure, adult exposure, all of the above?
Second class citizen of the New Gilded Age
It does depend on how much STR and DEF the egg has.
#DeleteFacebook
He is correct, or haven't you noticed that nobody is claiming that the conception rate has plummeted?
The number of sperm released in ejaculate is directly related to fertility. There is a process called the acrosome reaction. https://en.wikipedia.org/wiki/...
While only one sperm performs the actual fertilization, it requires a lot more of them to prepare the egg.
Not happening without those other sperm.
The shepherds did so well protecting the flock that the sheep no longer believed that wolves existed.
Don't forget plastic in our food.
#DeleteFacebook
No it doesn't.
Guns don't kill people; Physics kills people! - John Lithgow as Dick Solomon on Third Rock From The Sun
You're a fat retard and everyone else.
Did I do that correctly?
#DeleteFacebook
Again, no change in birth rate proves you are wrong.
Guns don't kill people; Physics kills people! - John Lithgow as Dick Solomon on Third Rock From The Sun
You missed the important part, no doubt on purpose: it doesn't matter if it is 50 or 100 million.
SRSLY? Just out of curiosity, are you a pediatrician or OB/GYN and if so - or even if not so, give me the cites to illustrate that which you are so certain of. The idea that a male producing half of the sperm of another especially 50 million per ejaculate is as fertile goes against everything I have been taught and experienced. Your expertise in this matter is requested.
Thank you in advance for providing this information. Here is something that I know, and am awaiting for your debunking of the Mayo Clinic http://www.mayoclinic.org/dise...
39 million sperm per ejaculate is considered as a low sperm count. the present day average of 50 million is getting close, and will perhaps reach that level in the future. Then again, I believe that you actually think that if a male produces even one sperm, the woman will beome pregnant. I'll respectfully ask for the debunking of the acrosome reaction in whic many sperm attach them selves to the zona pellucida and create enzymes that allow the one sperm that does the actual insemination to pierce the egg and finish the fertilization process.
The shepherds did so well protecting the flock that the sheep no longer believed that wolves existed.
More likely it was the neighbor
Pretty fsking creepy of them.
Requiem for the American Dream
Don't think anyone measures conceptions per creampie. Quality of spawn also seems to be ignored
Estrogen mimic plasticizers are all over the environment. They're in your clothes, your bottled water, your food, the chairs you sit in, ETC.
They would be my first guess as to the reason for many abnormalities, and certainly for something involving sperm counts.
I think we've pushed this "anyone can grow up to be president" thing too far.
Not a guy who understands statistics I see.
Guns don't kill people; Physics kills people! - John Lithgow as Dick Solomon on Third Rock From The Sun
Again, no change in birth rate proves you are wrong.
One of the things I learned a long time ago was that arguing with people like you is pointless. I gave citations, and you just sit there and take an unrelated point and bandy it about
If you actually have the balls, take my citations and prove me and places like the Mayo clinic wrong.
The shepherds did so well protecting the flock that the sheep no longer believed that wolves existed.
Some women are just really fertile! The the vaginal chemistry would be that of keeping the sperm alive long enough to wait out an egg to be available. Of course, having healthy sperm to live long enough, and travel, is just as important too.
Don't rely on just a condom. Sometime leaking can occur at the base of the "johnson" if you keep at it for sport. Just a drop or a thin film of the seminal fluid is all it takes to get her pregnant under the right conditions.
Life is not for the lazy.
The Handmaid's Tale.
sub f{($f)=@_;print"$f(q{$f});";}f(q{sub f{($f)=@_;print"$f(q{$f});";}f});
Nice weasel attempt, but all you have to do to prove your claim is correct is cite the plummet in conception rates.
Can you show me where I claimed the conception rates have plummeted?
But let's talk about conception rates since you fixate on it. We'll ignore that it isn't used too often in humans, it seems to be of maximum interest in bovines.
In humans the term pregnancy rate is used. It is also used a lot for IVF, which has a much lesser success rate than normal sex, so it's a bad term overall, and not a very good measure of sperm count and it's relationship to pregnancy. https://en.wikipedia.org/wiki/...
Regardless to try to relate to your conception rate, any number we might come up with is difficult, especially in light of say, the USA's fertility rate hivering at just around replacement rate https://en.wikipedia.org/wiki/...
So are couples using birth control? Is age a factor? This is unclear, and there are political issues as well. Some articles about this, but not conclusive and hard to dig numbers out of, and I'm certain that they are hedging their bet. There is no doubt that most research on male infertility is mostly about women, as strange as that seems.
But without your trying to wiggle out of this, if you have an issue with the Mayo clinic's definition of male infertility, and with the US fertility rate, and with the sperm count heading toward that definition, then argue with them.
I've given an internet troll neough of my time.
The shepherds did so well protecting the flock that the sheep no longer believed that wolves existed.
underwear!
Many plastics interact with the human body in the same way as estrogen. RBGH also interacts with the human body in the same way as estrogen. Not only does this result in lower sperm counts, but if it makes it way into the fetuses of pregnant women, it can cause gender dystopia (aka gender identity disorder). I would not be surprised if we discovered that the number of gay males and trans humans has been on the rise, even after accounting for greater rates of gays coming out.
America is a mentally ill country that is afflicted with Wall (Street) Syndrome.
Insane investors will sacrifice children to meet Wall street expectations.
Over the last few months several Science reports were released, each dealing with the subject of drugs, water, and gender.
Many people take prescribed medication with no thought of what they do to the body, how they are used, or what actually becomes of them.
As example, when we ingest vitamins, our bodies take what it needs and the excess is passed out of the body via urine an excrement. Therefore, these excess vitamins end up in our water supply.
The same is true for medications dealing with high blood pressure, diabetes, Anti-depressants or Anti-Psychotics.
Approximately 70-80% of these medications are passed through and end up accumulating in the water system.
For the last 10-12 years, Anti-depressants have been over prescribed and the number 1 medication prescribed by doctors in the US.
I read a science report a few months ago of large amounts of Anti-depressants being measurable in our drinking water.
These were also detected in the ocean, which means the levels must be pretty high if they can be measured in an ocean.
Scientists also noticed a change in the ocean wild life. There were a variety of fish whose gender was being drastically altered by these drugs, with some male fish even developing female organs.
I wouldn't be at all surprised if this has also contributed largely to the sudden emphasis of trans-gender alteration we are seeing in humans for the last 10 years.
Surely, the EPA and FDA must have noticed this change in our water supply. The question is, why haven't they responded by protecting the citizens?
In a follow-up study, sperm counts amongst women remain precisely steady.
It's because we don't play enough football.
Do you want a powerful brain or powerful balls?
Table-ized A.I.
If you want to be a dad, better wrap your balls in lead.
Plastics in the food chain. bisphenol A and phthalates are chemicals that leach from plastics and disrupt the endocrine system. No matter what you chose believe, good luck avoiding them.
I appreciate the amount of work done in this project so far and how regularly commits are made so we can watch the progress. Seriously, it looks like an empty shell that is just another place to post links to advertise your "sideline businesses" so, your big wheel of links can go round and round.
Cheers,
Everything I write is lies, read between the lines.
I think you are hanging out in the wrong bars
Time for bed, said Zebedee - boing
Dear dumbfuck. You are the one who said that a drop from 100 to 50 Million would have a significant effect on birth rates. It is up to you to show that and you didn't since you can't since it is untrue. What you have learned is "don't pick an intellectual battle with someone far smarter than you are, or you will lose, as quoting a Wikipedia article won't count as proof of your easily refuted claim" and you know it. Off you go again little boy ...
Guns don't kill people; Physics kills people! - John Lithgow as Dick Solomon on Third Rock From The Sun
We could solve this by switching from trousers to skirts. The Scots proved it to be a viable male garment.
We do less male stuff, plain and simple. Testosterone is down from sitting on the couch, getting fat, drinking to much beer, stimulating with videogames rather than real stuggles and not work harder physical labour as we used to. Porn feeds an epidemic of erectile dysfunction that has to play out into sperm quality and count at some point. And on top of that the guilt-show western males have to go through hamper true male heterosexuality - a very important aspect consistently left out of this shitty ongoing gender debate that seems to totally ignore hetero males other than in shaming them.
Anecdotal point in case: I startet social dancing (Tango) about a decade back. Curiously, this old-school supposedly macho dance is consistently overbooked with often very well educated women who apparently really desire a strong man to hug and lead them at regular intervals. I just came back from a Tango trip to Moscow two days ago, which drove this impression home tenfold for me once again.
Anyhow, after starting Tango I started to finally get the encounters with women I had so desperately desired since my teenages, often just consisting of firmly hugging a beautiful lady for an extended period of time, and soon noticed my body hair getting significantly darker and my voice lowering. Clear sings of testosterone going up to normal levels. That, as you can imagine, actually did amp my attractieness to the ladies quite a bit.
Now being in my mid/late 40ies I'm also slowly getting a grip on the "male guilt" thing that comes with growing up in an often wrongly feminist society. I'm leaving nerdy escapism more and more behind (Slashdot being still one of the exceptions) and have by now had enough sexual experiences to finally feel OK as a white hetero man. Not perfect, but OK. The guilt thing withdrawing includes a healthy perspective on porn and masturbating (i.e. not that spectacular as the real thing and often not worth it) which actually go back to 'normal' levels once confidence sets in and there is emotional room for escapism and numbing to retreat.
Long story short: We basically lack most of the natural environment that makes men men and have to work it out in other ways. Ad in fathers either chickening out of their responsiblities or - as in the US - too much in a legal risk to get married these days and you completed the picture. That sperm count goes down in these times comes as no real surprise to me.
My 2 eurocents.
We suffer more in our imagination than in reality. - Seneca
Ok. In which case, not creepy at all.
Wait wth?!
Requiem for the American Dream
I get what you're saying, but it honestly isn't very unusual for women to melt out of their pants if a foreigner compliments them in their own language, no matter where you are. Women are always somewhat interested in bringing exotic genes into the local gene pool, it's a basic evolutionary tactic to avoid inbreeding.
If the trend continues, there will be a day when Western Man is no longer able to produce sperm at all.
But fear not, humanity! Thanks to frozen sperm, bulls that died years ago are still fathering calves. With my high IQ and 6' 2" manly-man size, I am willing to contribute now to save First World Man from extinction.
Charlize Theron...honey...I'm afraid you'll just have to lean into the strike zone take one for the team. The future of the world will be in your hands. Literally.
Inbox me, honey. Let's get this done!
I've calculated my velocity with such exquisite precision that I have no idea where I am.
I thought it said "spam" counts.
No, the doctor giving him his counts.
Found someone who doesn't understand at all how evolution works.
That would be you, then?
If a pressure disappears, those with genes that code for an individual's resistance to that pressure no longer reap an evolutionary benefit. Those who lack what was a genetic advantage will be just as likely to pass on their genes without that advantage. And if the gene resisting the removed pressure has a cost, even a small one, it will be selected against. Cave fish lose their eyes, because the cost of having eyes is non-zero.
For the first generation after the pressure goes away, you can tell that there is a change. More individuals with the genes have offspring. But at that point, the mutation (or lack of a mutation) is just passed on; you can only measure the impact on individuals themselves. The next generation, you can measure the impact on the population, i.e. the genes spreading, and not just being passed on.
The belief that evolution only works over long time scales is invalid and a sure sign that someone doesn't understand evolution. The effects are immediate, and cumulative. When the effects of a mutation are small, spreading takes longer, just like a low interest rate takes longer to generate wealth. When the effects of a mutation are larger, it takes a surprisingly short time. Studies on finches, cichlids and fruit flies show rather radical changes happening within very few generations when pressures change. Remove a predator, and the genes that increase the odds of surviving that predator no longer gives an advantage. When a predator is removed, fish that cannot react and swim faster than the predator (or their brethren) now survive to breeding age, which has an immediate and measurable impact. Next generation, you can see the genes for being slower starting to spread as the advantage of lower metabolic burn rate starts paying out on the interest rate. It only takes one generation to see the effect, and only two to observe the spread. It may still take a long time before a genetic change becomes ubiquitous, but it's very quickly measurable if you know what to look for.
I have a theory about why guys would be averse to skirts. It's the same reason guys want women to wear them. It makes groping and feeling up easier. Just sayin' That theory is enough to override any other advantages there may be to wearing one tube of cloth instead of two tubes of cloth.
I'll see your senator, and I'll raise you two judges.
are much more effeminate than just a generation ago.
You actually may actually be on to something. Part of that can be obesity (estrogen is generated by fat cells). But xenoestrogens from plastics (esp. BPA) and phytoestrogens from soy are entering the diet and the water supply in increasing quantities.
> arguing with people like you is pointless.
You have not, apparently, learned that.
Then again, if I can irritate the guy, that's a plus.
The shepherds did so well protecting the flock that the sheep no longer believed that wolves existed.
Seriously, it looks like an empty shell that is just another place to post links to advertise your "sideline businesses" so, your big wheel of links can go round and round.
I find your lack of faith disturbing. :P
Amen. Once you start thinking about where plastic is found, and the precious few places where it isn't found, plus as you say known estrogen mimic properties (https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3222987/), it's pretty hard not to see that as a the culprit.
Define 'men'.
Ken
Exactly. Increased arousal does not increase sperm count.
I wonder if this study took into account the new, evolved definition of 'male' to include people lacking the body parts needed to actually produce sperm?
Ken
Or sheep. (Just sayin'). "Noooooooootttttttttttt Baaaaaaaaaaaad!"
"I say we take off, nuke the site from orbit. It's the only way to be sure."
1. Someone mentioned obesity, which does lower fertility.
2. Oh, and need moar guns, gotta protect ourselves against, um, against people who don't live here, who... make sure that we're TERRIFIED, SCARED SHITLESS ALL THE TIME, and that cuts fertility.
3. Finally, it sure looks to me like the studies they did in the sixties and seventies with rats on overpopulation. Once it hits that, you get fewer kids, more craziness, cannibalism... hell, you might have a psychotic elected President!
...sigh...
I sense great fear in you, Skywalker. You have hate. You have anger. But you don't use them.
The Russians have won. They have made the world a cesspool of distrust, greed, fear and hate.
It is THE most adulterated food supply int he world.
You can't even know what's IN the products you buy because of the shit labeling laws favoring corporations.
You should be upset. You should be outraged. You should be demanding a stop to this absurd corruption. But you're like all Americans, you remain silent. You deserve to die off.
Why would it irritate me to watch you make a fool of yourself?
Guns don't kill people; Physics kills people! - John Lithgow as Dick Solomon on Third Rock From The Sun
^ this BPAs and similar other toxins in the environment will be our slow undoing. It'll be just slow enough that we'll let it happen before doing anything to prevent it, just like climate change.
Scots only started wearing kilts (as ceremonial garb) in around 1820 (Georgy-Porgy's visit to Edinburgh), and few wear them as day-to-day garb today. Before then, they'd often wind the pleid mhor around the legs to form a loose pair of "trews", or as would be described elsewhere, loincloths. By the way, "Braveheart" was stirring uplifting bullshit.
Birds are not dinosaur descendants;birds are dinosaurs, for all useful meanings of "birds", "are" and "dinosaurs"
Protocol here is to (1) cauterise both ends of the severed vasa, and (2) perform a sperm count 3 months after operation, before authorising the cessation of the contraception already in use.
That strongly suggests that your practitioner wasn't using any sort of cauterisation, which does have a significant failure rate. If you informed the second practitioner of the failed first vasectomy (they'd have seen the scars anyway), then not performing the cauterisation step is pretty well down the road to malpractice. Normally, I'm not one for promoting "sue the doctor" at any event, but in this case it does strike me as being a pretty basic failure.
In the UK, using the [cut, remove cm-length, cauterise] protocol, spontaneous reconnection rates are under 1%, which would suggest you're a 1-in-10,000 event. If your practitioners are using a proven protocol, and doing it properly.
Birds are not dinosaur descendants;birds are dinosaurs, for all useful meanings of "birds", "are" and "dinosaurs"
Doctors report counts performed at external labs. If they're not, then they are the external lab for hundreds of other practitioners, and have several dozen staff doing sperm counts. (There were 5 sperm counting centres in the UK when I had my vasectomy, so I'd estimate 30 or so in the US. Maybe one per county/ State.) Personally, I just wanked into the pot (~3 months after snipping, per instructions), sealed it, put it into the packaging, dropped it into the post, and got the computer-generated letter a couple of weeks later. Probably not touched by human hands in the process. When I went for a re-test (to confirm my sterility before getting married), I had been in correspondence with the testing organisation beforehand, and got a human dictated and signed certificate of sterility.
Birds are not dinosaur descendants;birds are dinosaurs, for all useful meanings of "birds", "are" and "dinosaurs"
Those millions of non-penetrating sperm do have an effect, by eroding the mucous layer.
Birds are not dinosaur descendants;birds are dinosaurs, for all useful meanings of "birds", "are" and "dinosaurs"
True, although the male skirt, as part of a tunic or other masculine garb, is an ancient garment. The Scots were hardly the first to come across the innovation, and won't be the last to make it popular. It was the horse that made trousers a necessity for men.
What are the normal and SD for those parameters? (The subject is obviously of concern to you but not me. Childfree by choice.)
Birds are not dinosaur descendants;birds are dinosaurs, for all useful meanings of "birds", "are" and "dinosaurs"
It's not new results. It's a metaanalysis of a large number of previous studies. Dumbass - go read the fucking article.
Birds are not dinosaur descendants;birds are dinosaurs, for all useful meanings of "birds", "are" and "dinosaurs"
Well, at least you have an understanding of the difference between a plastic and a plasticiser.
Birds are not dinosaur descendants;birds are dinosaurs, for all useful meanings of "birds", "are" and "dinosaurs"
I don't see any big problems either. It'll take time (generations, literally not figuratively) to work through the demographic pyramid, but reducing fertility is an obvious requirement on a planet of finite resources and with an individual desire to not die young.
Birds are not dinosaur descendants;birds are dinosaurs, for all useful meanings of "birds", "are" and "dinosaurs"
Probably true. If it weren't for the horse, "trousers" as an idea probably wouldn't exist outside the Nenets, Yamal and Inuit.
Birds are not dinosaur descendants;birds are dinosaurs, for all useful meanings of "birds", "are" and "dinosaurs"
Don't quit your day job as a janitor to go to get into psychology :^)
Guns don't kill people; Physics kills people! - John Lithgow as Dick Solomon on Third Rock From The Sun
Overpopulation is a myth. Malthus, in Essay on the Principle of Population thought the world was overpopulated in the late 1798 and thought we should kill off poor people because they were less deserving of life than rich people. He thought doctors shouldn't cure disease. Paul Ehrlich in the 1970s said that famines would devastate humanity by the 1980s. Did you know that everyone on earth could get a comfortable 33' x 33' plot of land and would only take up the size of the state of Texas and the rest of the world would be empty? Here's the math 7.5 billion people divided by 7.5 billion sq. ft (in Texas) is about 1000 sq. ft/person or a plot about 33' x 33'.
Ridiculous. My sperm count decreased by 100% in the past 40 years. In fact, it decreased by 100% over a few days in 2001, and it's stayed at zero since.
Since this is Slashdot, I'm assuming my anecdotal experience counts as compelling evidence for the general case.