In a study that underscores the risks of oral sex, scientists have found that an AIDS-like virus can infect monkeys after it is dabbed on the backs of their mouths. These and other findings "should be a warning that oral sex is not safe sex," Dr. Ruth M. Ruprecht, the head of the research team, said in an interview. But Dr. Two main reasons are that epidemiological studies have limited evidence of this method of transmission, and "the risk for oral infection appears to be limited to higher" amounts of virus than has been found in saliva, said the researchers, who are from the Dana-Farber Cancer Institute in Boston and Tulane University in New Orleans. The new monkey findings surprised the researchers and health officials. One reason is that epidemiological studies show that oral-genital exposure has been implicated in transmission of H. Another surprise is that the amount of the monkey AIDS virus needed for infection was one six-thousandth of the amount required for infection through the rectum.


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Sex, we are told, is pleasurable. That's because most scientific accounts of sexual behaviour rest upon evolutionary explanations rather than the more immediately relevant mental and emotional experiences. To say that we have sex because it helps us to preserve our genetic legacies would be entirely accurate, but the more fleeting, experiential, pleasurable aspects of that most basic of social urges would be missing. It would be like staring at a painting with half the colour spectrum removed from it.
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Non-reproductive sexual behavior consists of sexual activities animals participate in that do not lead to the reproduction of the species. Although procreation continues to be the primary explanation for sexual behavior in animals , recent observations on animal behavior have given alternative reasons for the engagement in sexual activities by animals. Observed non-procreative sexual activities include non-copulatory mounting without penetration, or by the female , oral sex, genital stimulation, anal stimulation, interspecies mating, and acts of affection. Lions are known to engage in sex to create bonds and interact with each other. Lions live in a social group known as a pride that consists of 2—18 females and 1—7 males. The females found in these prides were born into the pride. The males enter the pride from other prides. The success of reproduction for each individual lion is dependent on the number of male lions found in their social group. Male lions create coalitions and search for prides to take over. Successful coalitions have usually created a strong bond with each other and will take over prides.
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