Sex - WOMAN WITH DOG - seks facetki z psemZoophilia, from the Greek ???? (z?ion, "animal") and f???a (philia, "friendship" or "love") is a paraphilia involving the sexual attraction to non-human animals. Various other terms have been used by clinicians and by zoophiles (individuals with zoophilia) themselves. Zoophilia refers specifically to sexual interest in animals, not sexual behavior involving animals.[1]. Although sexual interactions with animals is legal in some countries (see: legal aspects), it is not explicitly condoned anywhere today. In most countries, such acts are illegal under animal abuse laws or laws dealing with crimes against nature. There is currently considerable debate in psychology over whether certain aspects of zoophilia are better understood as a paraphilia or a sexual orientation. In a species that reproduces sexually, sexual attraction is an attraction, usually, to other members of the same species for sexual or erotic activity. This type of attraction often occurs amongst individuals of a sexually-reproducing species, although in many species it serves no immediate reproductive goal -- indeed, some sexual behavior among primates is undertaken as a social activity. Certain aspects of what is sexually attractive to humans may differ amongst particular cultures or regions. Influencing factors may be determined more locally among sub-cultures, across sexual fields, or simply by the preferences of the individual. These preferences come about as a result of a complex variety of genetic, psychological, and cultural factors. The sexual attraction of one person to another depends on both people. Sexual intercourse, in its biological sense, is the act in which the male reproductive organ (in humans and other higher animals) enters the female reproductive tract, called copulation or coitus in other reference. The two entities may be of opposite sexes, or they may be hermaphroditic, as is the case with snails. Traditionally, intercourse has been viewed as the natural endpoint of all sexual contact between a man and a woman, and is commonly confined to this definition today. The meaning of the term, however, has been broadened in recent years, and now labels at least three different sex acts. These three types of intercourse are: vaginal intercourse, involving vaginal penetration by the penis; oral intercourse, involving oral caress of the sex organs (male or female); and anal intercourse, involving insertion of the male's penis into his partner's anus. Sex acts that involve the use of fingers or hands or mutual masturbation are more often referred to as outercourse (with oral sex at times listed as an aspect), while the term sex, in the context of sexual intimacy, is often understood more widely to include any mutual genital stimulation. For most non-human animals, sexual intercourse occurs at the point of estrus (the most fertile period of time in the female's reproductive cycle) which increases the chances of successful impregnation. However, bonobos, dolphins, and chimpanzees are known to engage in sexual intercourse even when the female is not in estrus, and to engage in sex acts with same-sex partners. In most instances, humans have sex primarily for pleasure. This behavior in the above mentioned animals is also presumed to be for pleasure, which in turn strengthens social bonds. Many animals which live in the water use external fertilization, whereas internal fertilization may have developed from a need to maintain gametes in a liquid medium in the Late Ordovician epoch. Internal fertilization with many vertebrates (such as reptiles, some fish, and most birds) occur via cloacal copulation (see also hemipenis), while mammals copulate vaginally, and many basal vertebrates reproduce sexually with external fertilization. However, some terrestrial arthropods do use external fertilization. For primitive insects, the male deposits spermatozoa on the substrate, sometimes stored within a special structure, and courtship involves inducing the female to take up the sperm package into her genital opening; there is no actual copulation. In groups such as dragonflies and many spiders, males extrude sperm into secondary copulatory structures removed from their genital opening, which are then used to inseminate the female (in dragonflies, it is a set of modified sternites on the second abdominal segment; in spiders, it is the male pedipalps). In advanced groups of insects, the male uses its aedeagus, a structure formed from the terminal segments of the abdomen, to deposit sperm directly (though sometimes in a capsule called a "spermatophore") into the female's reproductive tract. code pour embarquer la vidéo : >>> http://www.youtube.com/embed/2mYxSUtiOyA <<< |