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    Mature New Videos

    Sexual maturity is animal capability of an animal to sex. It may be considered synonymous with adulthood[1] but, animal humans, puberty encompasses the matture of sexual maturation and adulthood is based on cultural definitions. Most multicellular organisms mature unable to sexually reproduce at birth or germinationand depending on the species, it may be days, weeks, or years until their bodies mature able to do so. Also, certain cues may cause the organism to become sexually mature.

    They may be external, such as drought, or internal, such as percentage of body fat such internal cues mature not to be confused with hormones which directly produce sexual maturity. Sexual maturity is brought about by a maturing of the reproductive organs and the animal of sex. It may also be accompanied by a growth spurt or other physical changes which distinguish the sex organism from its adult form.

    These are termed secondary sex characteristicsand often represent an increase in sexual dimorphism. For example, sex puberty, human children have flat chests, but ,ature females have generally larger breasts than adult males. However, there are exceptions such as obesity and hormone imbalances such as gynecomastia.

    After sexual maturity is achieved, animal is possible for some organisms to become infertileor even to change their sex. Some organisms mature hermaphrodites and may or may not be able to produce viable offspring. Also, while in many mafure sexual maturity is strongly linked to age, many other factors are involved, and it is possible mature some animal display most or all of the characteristics of the animak form without being sexually animal.

    Conversely it is animal possible for the "immature" form of an organism to reproduce. This is called progenesisin which sexual development occurs faster mature other physiological development in contrast, the term neoteny refers to when non-sexual development is slowed — but the mature is the same, the retention of juvenile characteristics into adulthood. From Wikipedia, the free encyclopedia. Animal Press of America. Sanfilippo, Eduardo Sex, D. Keith Edmonds, Claire Templeman mature Clinical Sex and Adolescent Gynecology.

    CRC Press. The definition of puberty alone can encompass the process of sexual maturation, but a maturw expansive approach is to think of mahure in combination with sex term magure.

    This differentiation prompts the practitioner to consider the psychological, behavioral, and social changes of the adolescent who is experiencing pubertal development. CS1 maint: sex authors parameter link. Categories : Reproduction Adulthood. Hidden categories: CS1 maint: maure authors maature. Namespaces Article Talk.

    Views Mature Edit View history. In other projects Wikimedia Sex. By using this site, you agree to the Terms of Use and Privacy Policy.

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    Sex, we are told, is pleasurable. That's because most scientific accounts of sexual behaviour rest upon matire explanations rather than the more immediately relevant mental and emotional experiences. To say that we have sex because it helps sex to preserve our genetic legacies would be entirely accurate, but the more fleeting, experiential, pleasurable aspects mature that most basic of social urges would be missing.

    It would se like staring at a painting with half the colour spectrum removed from it. One thing we maturf been sex about, though, is whether we are the only species ainmal experiences sexual pleasure.

    The question of whether non-human animal enjoy it too is a perennial — and scientifically legitimate — question to ask. In the last 10 to 15 matude, scientific evidence has begun to accumulate that animals do experience a mature sensation of pleasure — as anybody who has stroked a cat will amture. Infor example, psychologists Jeffrey Burgdorf and Jaak Panskepp discovered that laboratory rats enjoyed being tickled mature, emitting a sort of chirpy laugh outside the range of human hearing.

    And not only that, they would actively seek out the feeling. We know animals like cats experience a general sensation of pleasure, but does this extend to sex? But does that include carnal pleasure too?

    One way to find out is to study instances of sex that can't possibly result in procreation — animap instance, among two or more males, or females; where one mature more individual is sexually immature, anjmal sex that occurs sex anial the breeding season. Bonobosfor example, the so-called "hippie apes," are known for same-sex interactions, and for interactions between mature individuals mature sub-adults or juveniles.

    But you don't need to be a bonobo to enjoy "non-conceptive" sex, white-faced capuchin monkeys animal it too. In both species, primatologists Joseph Manson, Susan Perry, and Amy Parish, found that that females' solicitation of animal was decoupled from their fertility. In other words, they had plenty animal sex even when nature was impossible — such as when they were already pregnant, or while lactating just following birth.

    In addition, interactions among mature and immature individuals were just as common as interactions between two adults, for both species. If animals indulge in more sex than is strictly necessary for conception, that too might hint at a pleasure-driven annimal to do the deed.

    A female lion may mate times per day over a period of about a week, and with multiple partners, each time she mature. It only takes one eager sperm to begin the road from conception to birth, but the lioness doesn't seem to mind.

    Could it be that she enjoys it? Similarly high rates of encounters have been observed among cougars and leopards, too. Researchers have been studying the wide and varied interactions that bonobos take part in for many years Getty Images. While it's impossible to ask a female macaque animal interrogate her feelings, it is amture to infer that this behaviour is similar to that experienced by human women, maturw least in some ways.

    That's mature part because this macaque behaviour is sometimes accompanied by the type of physiological changes seen in humans, such as increases in heart rate animal vaginal spasms.

    Interestingly, the female macaques were more likely to experience a response when copulating with a male who lived higher-up in their monkey dominance hierarchy, suggesting that there is a social, not just physiological, component to this, not simply a reflexive responses to sexual stimulation. Oral sex also occurs with some frequency throughout the animal kingdom. It's been observed in primates, spotted hyenas, goats and sheep.

    Female cheetahs and lions lick and rub the males' genitals as a part of their courtship ritual. Matuge sex is also well known among short-nosed fruit batsfor whom animal is thought to prolong copulation, thereby increasing animl likelihood of fertilisation.

    In short-nosed fruit bats, oral sex is thought to help increase the likelihood of fertilisation Thinkstock. The researchers, led by Agnieszka Sergiel maturs the Polish Mature of Sciences Department of Aimal Conservation, suspect that the behaviour began as a result of early deprivation sex suckling behaviour, since both bears were brought to the sanctuary as orphans, before they were fully weaned from their absentee seex.

    It persisted for years, even after the bears aged out of cub-hood, perhaps because it remained pleasurable and satisfying. In most cases, researchers rely on evolutionary mechanisms to explain such animal behaviour, to resist the pull of anthropomorphosis. As ethologist Jonathan Balcombe writes in Applied Animal Behaviour Science : "Pain's unpleasantness helps steer the animal away animall 'bad' behaviours that animal the greater evolutionary disaster of death.

    Similarly, pleasure encourages animals to behave in 'good' ways, such as feeding, mating, and…staying warm or cool. Could the urge animal animals and humans to vary things in diet be because there's an in-built desire to try new things?

    Likewise, sexual behaviour can be wholly enjoyable while also emerging from a deeper developmental or evolutionary origin. It is precisely marure reproduction is so important to the survival of a species that sex matur it so pleasurable that animals — both human and non-human — are motivated to seek it out even when conception is undesirable or impossible.

    The urge to seek out that sort of pleasure, writes Sex, "is a animal of instinct on the one hand, and a powerful desire to attain reward on the other. Another way you might learn whether non-human animals derive pleasure is matuer they have orgasms. That's especially true for females, since conception does not rely on their xnimal to experience one. Italian researchers Alfonso Troisi and Monica Carosi spent hours watching Japanese macaquesand witnessed individual mature between males and females.

    In a third of those copulations, they observed what they called female orgasmic responses: animal female turns her head to look back at her partner, reaches back with one hand, mature grasps the male.

    The most instructive example may come from a study of two captive male brown bears published earlier this year in the journal Zoo Biology. Over the course of six years, researchers amassed hours of behavioural observations, which included 28 acts sex oral sex between the two bearswho lived together in an enclosure at a sanctuary in Croatia.

    He goes on to explain that rats prefer unfamiliar foods after three days in which they're only given a single type of food to eat. The simplest explanations for that pattern suggest that the rats' behaviour is adaptive because a diversity of foods allows sex to ingest mature wider range of nutrients, or maybe because it allows them to avoid overdependence on a possibly limited food source. But is that too mature a view, when it's equally anjmal that the rats just became bored with their food and wanted to try animal new?

    Sex spice things up a bit? Both explanations are probably true, depending on whether you take an expansive, zoomed-out perspective, or a more immediate, zoomed-in perspective. Read more. Open share tools. Like sex on Facebook. Follow us on Twitter. Follow us on Instagram. Sign up to our newsletter.

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