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(PhysOrg.com) -- New research from The Australian National University has shown how genetic variation persists through generations, rather than being bred out in an evolution towards a ‘perfect type’. 
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Testosterone may not always be linked with risk-taking, according to new research finding that men with higher levels of the hormone are more accepting of safe sex.
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Health classes with tests don't help high school students prepare for sex in the real world, according to a study that surveyed students in test-focused classes, as well as those in classes where teachers emphasized the importance of the material.
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A new study suggests that sex during adolescence can have lasting negative effects on the body and mood well into adulthood, most likely because the activity occurs when the nervous system is still developing.
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Patricia Brennan and Diane Kelly are biologists at the University of Massachusetts, Amherst, where they study the evolution of copulatory systems in mammals, birds, and reptiles. The video summarizes the reasons for and goals of the Duck Force project. Head over to our #SciFund Challenge Page on RocketHub to donate! http://bit.ly/sK0X0S
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In a species of hawk, males dress themselves up as females to gain a sneaky advantage in the mating game, according to an unusual study published Wednesday.
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eat me | Sweets, Sex, or Self-Esteem?Comparing the Value of Self-Esteem Boosts with Other Pleasant Rewards.Many people ascribe great value to self-esteem, but how much...
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“Vertebrate males commonly experience elevations in testosterone levels in response to sexual stimuli, such as presentation of a novel mating partner. Some previous human studies have shown that watching erotic movies increases testosterone levels in males although studies measuring testosterone changes during actual sexual intercourse or masturbation have yielded mixed results.
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First there was mystery. Why do women want to cuddle and men want to hit the road (after sex), then there was brain scanning and evolutionary psychology, and the mystery was no more Via Dimitris Agorastos
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In a study published online today in the international journal Addiction, researchers at the University of Pittsburgh reported that the average US adolescent is heavily exposed to alcohol brand references in popular music.
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Orchids use bizarre devices to ensure they reproduce – including impersonating the sex organs of a female bee, writes Michael Pollan...
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Sex in space might be a headline grabber, but should humans venture into the space between the stars, having sex will be the least of our concerns.
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It is not the superior genes of the father, but the mother's resource investment in the eggs that makes Zebra Finch males particularly attractive.
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Pensioners with an active sex life are significantly more likely to enjoy a
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Researchers at the University of Tampere and the Aalto University, Finland, have shown that the perception of nude bodies is boosted at an early stage of visual processing. The results show that the brain boosts the processing of sexually arousing signals. In addition to the brain responses, the participants' self-evaluations and measurements reflecting the activation of the autonomic nervous system were in line with expectations, showing that nude pictures were more arousing than the other types of pictures. Such fast processing of sexual signals may play a role in reproduction, and it ensures efficient perception of potential mating partners in the environment.
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Women who underwent 12-week course in meditation became faster at recognizing their own sexual arousal. Women are typically slower than men to recognize when they're turned on, but meditation brought them up to speed with men in the study.
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Male nursery web spiders (Pisaura mirabilis) prepare silk-wrapped gifts to give to potential mates.
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Our intrepid reporter performs an intimate act in an fMRI scanner to explore the pathways of pleasure and pain...
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A warning for zoophiles from MSNBC: For many people, bestiality is a bad joke, but for some it could be a matter of life or death, according to a new study...
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Mo Costandi: A rare and mysterious condition called transient global amnesia is helping researchers understand the anatomy of memory and could be a useful model for Alzheimer's disease...
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The new Brazilian report about sex with animals has finally been published online. "Sex with Animals (SWA): Behavioral Characteristics and Possible Association with Penile Cancer.
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New research suggests that men who consume internet porn perform poorly when with a real flesh-and-feelings woman. This seems to especially be a problem for guys under 25 years of age - they have grown up with internet porn the ways guys in my generation grew up with Playboy. The problem for them is that the internet does different things to the brain when sex is concerned.
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Robo-bar staff, even robo-sex and hotel rooms that change colour, could be commonplace in future travel scenario. Tourism futurologist Ian Yeoman from University of Wellington, New Zealand, said that by 2050 mass tourism would spawn a range of new indoor tourism products. It would include indoor artificial ski centres, circuses, zoos, golf courses and recreated landscapes, as well as giant cruise ships, according to a Wellington statement. Even robot 'prostitutes'' that would not pass on diseases such as HIV could make an appearance, said Yeoman.
's comment October 13, 2011 8:05 AM
Tourism futurologist? The dream job I never heard of! Very interesting but sounds too much like fantasy. Only time will tell, thank you for sharing.
Sakis Koukouvis's comment,
October 14, 2011 3:08 AM
Yes it seems an ideal job ;-)
The time testifies everything!
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While the human papillomavirus (HPV) is known for infecting genitals, it can also spread quickly via oral sex, causing throat cancer disproportionately in men, says a new study. "Researchers examined 271 throat-tumor samples collected over 20 years ending in 2004 and found that the percentage of oral cancer linked to the human papillomavirus surged to 72 percent from about 16 percent, according to a report released yesterday in the Journal of Clinical Oncology."
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A forward-thinking department in the Pentagon held a symposium last week to discuss problems posed by interstellar space travel. Among the topics discussed at the meeting convened by Defense Advanced Research Projects Agency (D.A.R.P.A.) was the problem of procreatin in space. "A trip to even one of the closest stars would take decades and possibly hundreds of years, likely spanning multiple generations. But scientists aren't even sure humans can procreate safely in the microgravity of space." Earth's gravity is necessary for healthy muscles, strong bones and good vision.
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