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Why It Matters Who Females Choose to Have Sex With

Here’s the fascinating issue with duck sex. Ducks are different from most birds in the fact that male ducks have a penis, analogous with the mammalian or human penis. And the fact that ducks still have a penis allows them to force copulation in ways that are unavailable to other birds.

Unpaired males will attempt to force copulation during the egg-laying season. There are even socially organized groups of males pursuing females to force copulation. This is really physically harmful for the female ducks. They are stressed out. They fly away, dive, and do everything they can to avoid it. Sometimes they even drown because ducks often copulate in the water.

Patricia Brennan and I, and other colleagues, started studying this about 10 years ago. We were interested both in how the very large penis of the duck functions and how that is related to this violent sexual coercion. What we discovered was that some duck species evolved ribbed and even thorny penises. Very bizarre stuff! [Laughs]

Co-evolving with that are a series of innovations in vaginal structures that include dead ends, cul-de-sacs, or spirals. The male penis is counterclockwise coiled, and the female vagina in species with large penises is clockwise coiled.

We hypothesize that it functions literally as an “anti-screw” device, to prevent penetration during forced copulation. This is confirmed by genetic evidence. When forced copulation is as high as 50 percent, only 2-5 percent of the offspring are from extra-pair males, or forced copulation. That means these ducks have a 98 percent effective contraceptive device in their bodies!

The females are still incurring all the risk and damage of resistance. But, in the face of violence, they are maintaining control over who is fertilizing their eggs.

It was in 2013, during one of the ritual political squabbles over wasteful government spending, instigated by conservative news sources. I assume an enterprising intern or journalist at one of these websites found our National Science Foundation grant to do research on duck penises and turned it into news. Suddenly, we were being discussed on Fox News by Sean Hannity and his colleagues, and across the media. We had good defense from other folks in the media, but people were shocked to discover that their tax dollars were going to study the evolution of duck genitalia. What they didn’t know is that it is really fascinating!

When Darwin wrote On the Origin of Species he had no theory of genetics. He also had no theory or, at least, delayed a proposal about the evolution of human beings. He also had no real working theory for the evolution of beauty or, as he called it, “impracticable beauty”—beauty that served no purpose in survival. He went back to Down House, cogitated for a decade or more and came up with a second book, Descent of Man, in 1871.

At this point he was already world-famous for the idea of natural selection and so this new book caused a huge stir. He knew lots of people were sympathetic, but he knew that he was going to be working with very touchy subjects: human origins, human sexuality, and sexuality in general. He wrote a very long and granular book, with lots of nitty-gritty detail, which proposed sexual selection as an independent mechanism of evolution.

It had two components. One was competition within one sex, for control or access to the other sex, usually male competition. The other was choice of mates by the other sex, which could be female choice, mutual mate choice, or male mate choice, depending on the species. His idea that male competition, in particular, was a force in evolution, was a great sell in Victorian England. The other idea, of mate choice—and female mate choice in particular—was a bomb.

Even his biggest supporters didn’t buy it. People were concerned that he was attributing cognitive complexity to animals that they couldn’t possibly have. The other was the notion of female willfulness: The idea of females choosing mates on the basis of sensory information, in a licentious way, was very threatening! Some of the original criticism of the idea even attacked the concept as a sign of moral corruption.

The idea that was banished was Darwin’s original proposal for mate choice, which was explicitly aesthetic. He thought animals choose their mates because of the pleasure they have in observing and selecting them, and that was an explicit explanation for why ornaments in nature are beautiful. They’re beautiful because they’re beautiful to the animals themselves.

In bowerbirds, for example, females have used choice preferences to make males less aggressive and more amenable. Female bowerbirds do all the work: They build the nest, lay the eggs, care for the young. But they need to choose a mate.

They do so based on the quality and beauty of a bower. Males build a bower, which is like a seduction theater where courtship takes place. In addition, the male goes out and finds a bunch of beautiful things, like flowers or butterflies or white stones, and makes a big array of interesting stuff.

When the female comes to visit, the architecture of the bower is attractive, but also protective. It allows her a refuge so that she can get intimately close to the male and watch him strut his stuff while being protected from being forcibly copulated by the male.

There are these things called “avenue bowers.” The famous satin bowerbird has two parallel walls. She sits between the walls looking forward at him and his stuff. If he wants to copulate, he has to go around the bower to the back and mount her. But if she doesn’t like it, if she’s not ready or wants to keep looking, she just pops out the front.

This is shown in bowerbirds: Females receive dramatic and even violent displays because those displays are stimulating and because the females can keep their autonomy intact. That applies perfectly well to humans, as well. The problem with humans is that they’ve mostly been described as having evolved through natural selection or male-male competition. There has been very little role for the concept of mate choice—particularly female mate choice—in the evolution of humans.

Having done all this work on birds I became intrigued how some of these ideas about mate choice and sexual autonomy were providing fascinating and interesting explanations for the origin of social and sexual behavior in humans. Male primates, for the most part, have deadly weapons in their faces, in the form of large canine fangs that sharpen themselves on the pre-molars of the lower jaw as they chew. Our immediate relatives, chimpanzees and gorillas, have prominent canine teeth in the males, which females lack.

The question is: Under what conditions did human males give up these weapons? The proposal is that, taking a lesson from bowerbirds, human mate choice may have preceded in a similar way. By making weapons like fangs unsexy, females could expand their capacity to get mates they like. There’s lots of data showing that the biggest, burliest, and hairiest are not actually preferred by females.

My former student at Cornell, Kim Bostwick, showed that, in order to make those sounds, the wing bones of the male are enormous, particularly the trailing bone of the hind wing, where the wing feathers are attached. They’re also solid, like ivory. That’s amazing! Even T-Rex has a hollow ulna bone. That’s how ancient this property is.

In order to make sounds, the wing bones of the male manakin have been transformed into a structure serving both flight, as in all birds, but also attracting a mate—to sing a song. We’ve recently discovered that female wing bones have also been transformed. They are not solid, but they are 3-4 times wider than wing bones of closely related species of manakin. So, by selecting males for the songs they prefer, females have transformed their wings into a form that doesn’t fly so well, which is, I think, a kind of evolutionary decadence.

The whole species has become less fit for survival because of this aesthetic elaboration. If you adopt the aesthetic, Darwinian view of nature, the beauty of bird song and plumage is the result of 10,000 different standards of beauty evolving over this complicated history of mate choice. That prospect is something that has motivated my research over the last years and is one of the primary thrills I’m eager to communicate in the book.


95 percent of the victims of work accidents are men. Because women are cowards, and just want to rule from behind.


Man claims his sex doll is 'so much better' than his wife

For some, the idea of entering into a romantic relationship with a plastic doll might seem bizarre and objectionable. For others, however, such an affair is precisely what they need to alleviate their difficulties connecting passionately to human lovers.

Remember the 2007 film Lars and the Real Girl, starring Ryan Gosling? Lars suffers from anxiety and insecurities, and thus prefers the company of his artificial mistress over the pressures of dealing with a real person.

It seems the fictional Lars certainly isn’t alone in his fears. In fact, Japan is experiencing a surge of men that are using dalliances with dolls to overcome their insecurities.

Masayuki Ozaki started a relationship with his silicone companion, Mayu, after his marriage had lost its fizz. Ozaki insists that Mayu has become the love of his life. She shares Masayuki’s bed and lives in Tokyo under the same roof as his wife and daughter.

The unusual situation initially led to some heated arguments between Ozaki and his wife, but the estranged couple later reached an agreement.

Ozaki says he began to feel a “deep sense of loneliness” after his wife became disinterested in sex following the birth of their daughter. But he claims that “the moment I saw Mayu in the showroom, it was love at first sight.”

Ozaki, a physiotherapist by profession, regularly places Mayu in a wheelchair and takes her out on dates. He says he enjoys dressing her in wigs of different styles, jewelry, and sexy clothing.

The idea of romantic relationships with humans has become off-putting to Ozaki, who alleges that “Japanese women are cold-hearted.”

In Ozaki’s opinion, women in Japan are selfish and don’t fulfill a man’s desire to have a companion to talk to.

According to the New York Post, Ozaki is merely one of an increasing surge of Japanese men who are turning to synthetic sex dolls for the sort of romantic relationships that they long for.

Japanese scientists are concerned about the country’s significant drop in birth rates and believe that the sex doll craze will continue to impact the potentially devastating population decline negatively.

Manufacturers like Orient Industries create roughly 2,000 hyper-realistic sex dolls per year. The average cost of such a doll is $6,000, and each model comes with posable fingers, a removable head, and life-like genitals.

Orient Industry’s Managing Director, Hideo Tsuchiya, says that “technology has come a long way since those nasty inflatable dolls in the 1970s.”

Tsuchiya claims that the outer silicone texture of the dolls feels like real human skin, and “more men are buying them because they feel they can actually communicate with the dolls.”

Sixty-one-year-old Senji Nakajima has named his doll Saori. Like Masayuki Ozaki, Nakajima was also driven by loneliness when he decided to purchase a sex doll. After living with Saori for a few months, Nakajima says she developed her own unique personality.

Reconciliation with his wife is unlikely, says Nakajima. Such a development would mean he “wouldn’t be able to take a bath with Saori, or snuggle up with her and watch TV.”

Yoshitaka Hyodo, a 43-year-old blogger who resides in Saitama, owns at least 10 sex dolls. He dresses them in military uniforms to fulfill a personal sexual fantasy.

Hyodo believes that more men will choose relationships with sex dolls in the future because “it’s less stress and they complain a lot less than women.” For him, it’s not so much about sex as it is “about connecting on an emotional level.”

Orient Industries creates these top-of-the-range Japanese sex dolls, offering premium silicone human likenesses to an exclusive luxury market. However, the company has recently branched out and is now shipping dolls to destinations worldwide.

The company claims that future doll buyers can expect “next-generation sexbots” that will be able to talk, laugh, remember your birthday, and even simulate an orgasm.


Shocking:18 year-old puts up her virginity for sale

There is absolutely nothing that will not be seen in this world, everyday we are always up to a suprising news or event. The latest of the shocking news is an 18-year-old girl who put up her virginity for sale through an infamous auction website which invites potential buyers to ‘inspect’ her purity.

For some people, their first time is something saved for marriage, for others, it’s something to get over with, but this young student is going for the big bucks.

Kim, who gives only her first name, is half Austrian and half German. She is selling her virginity through the agency Cinderella Escorts so she can buy a car, a flat and finance her studies.

Bidding for the 5ft 8ins tall student starts at £86,640, of which 20 per cent goes to the agency, according to Mirror UK.

The Cinderella Escorts website says the lady’s virginity is proven with a doctor’s certificate and a potential buyer can also do their own tests to ‘inspect’ the girl.On their website, Kim states she likes drinking orange juice and loves Greek food and roses.

She said: “I would like to study in Germany or Vienna. With the money I can buy a flat, pay my tuition fees and afford a car.”

The student was inspired by Aleexandra Khefren, an 18-year-old Romanian model who sold her virginity for £2 million to an unknown Hong Kong businessman.

News about Khefren and the virgin escort agency went viral across the world and also came to the attention of Kim.

She said: “So is it really worth more than €2.3 million to give my virginity to a man that might eventually leave me anyway?To be honest, I do not believe it.”

Kim says she is willing to meet with the highest bidder anywhere in the world as long as all travels are paid for.

The man behind Germany’s most famous escort website is a 26-year-old obese man from Dortmund who still lives in his mother’s basement.Jan Zakobielski outed himself as the man behind the multi-million pound operation which he runs from his parents’ house, both of them apparently unaware of his business.

Zakobielski said: “No one makes these young women do anything they don’t want to do. They have their own minds and their own opinions on se*uality.”


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