Human sexual characteristics can sometimes seem completely useless from an evolutionary point of view. Scientists are puzzling over why these features are exactly the same and what makes us behave in this way?
Why do women have orgasms, and often not even one? Why do men prefer lush breasts? Why do people kiss? The answers to these and other questions can be very unusual theories, which will be discussed.
Secrets of the female orgasm Why do you need a female orgasm?
Undoubtedly, orgasm is a very pleasant and desirable thing for both men and women, but if you think about its necessity from the point of view of evolution, then you will come to the conclusion that orgasm is more necessary for men, but not for women. Contraction of vaginal muscles and pleasure from sex do not play a significant role in fertilization.
In addition, many women do not experience orgasm at all, but at the same time give birth to normal healthy children. According to one theory, women experience orgasms solely because men experience them. That is, the situation is the same as in the case of male nipples - this is what both sexes have developed, even if one sex does not need it from an evolutionary point of view.
Photo: mulher.uol.com.br
Other researchers are confident that, since orgasm is a pleasure, all women will want it, so they will be more interested in sex, which means they will have it more often, increasing the risk of becoming pregnant. Another theory states that if a woman has an orgasm a minute before or 45 minutes after a man ejaculates, their body retains more sperm.
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Multiple orgasms
Why do women take longer to get orgasm? Why can women have multiple orgasms during one intercourse? Many facts indicate that our ancestors adored orgies. From a biological point of view, this was beneficial, as women received more sperm and increased the chances of getting pregnant.
Thus, if women could have orgasms over and over again, longer intercourse was required so that women could accept as many partners as possible. Macaques and chimpanzees, our closest biological relatives, engage in group sex until females experience orgasm.
Sounds during sex
Why do women make more sounds during sex? This behavior of women is associated with the same thing with which the previous facts are connected - with the possibility of having a connection with many partners. The feminine sounds served to attract other males who might take part in the orgy.
Photo: ihoraksjuta.livejournal.com
The sounds helped women find more partners, which means they increase the chances of fertilization. Moreover, if paternity in this situation was not known, the entire group actively participated in caring for the child, and the men did not harm the rival's child, since the child could be their own. Horses have a similar approach.
If a mare begins to suspect that she is pregnant, she begins to mate with all males in the area, so not a single stallion will touch the newborn, thinking that these are his offspring.
Why are male testicles large in relation to the rest of the reproductive apparatus?
And again, this fact is associated with the passion of our ancestors for orgies. In monogamous animal species such as gibbons or gorillas, the testes are relatively small in relation to the rest of the body, but this cannot be said about humans.
Male polygamous animals usually have larger testes, so they can produce more sperm and fertilize more females.
Why do women need big breasts?
Of course, women need breasts in order to feed their offspring, but why does a person have such large breasts compared to most other animals? Why does a human female breast have this shape, even if the woman does not feed her children?
Photo: www.testosterona.blog.br
There are several theories about this. According to one of them, thanks to the large breast, the baby can breathe easier during feeding. In most other animals, the nose and mouth are approximately on the same line, while in humans the nose is protruding, so if the chest were flat, the baby would not be able to breathe normally while eating.
Another theory is that female breasts are associated with male pleasure and reproduction. That is why large breasts began to form when our ancestors began to walk upright.
In most primates, the genitals are located so that they are clearly visible, especially the fat reserves on the buttocks, in humans everything is somewhat different. As a result, evolution has given women breast fat stores to attract men.
This idea is supported by the fact that breasts begin to grow in girls with puberty, and after menopause, they lose elasticity and sag. Thus, the breast becomes an important fertility signal.
Why do people kiss?
It is customary for 90% of human cultures on Earth to kiss. Even some animals, such as bonobos, kiss. In addition to being very enjoyable and allows you to get closer to your partner, kissing has another advantage in terms of evolution.
Photo: delina.hu
Lip kissing strengthens the immune system by allowing participants to exchange germs. Scientists believe this is especially important when it comes to cytomegalovirus, an infection that threatens a woman's offspring if it is acquired at certain times.
This virus is easily spread from mouth to mouth during kissing. If women acquire a virus strain in this way at a specific time, their immunity is stimulated, and women are able to protect their offspring from infection in the future, when the child is at the most vulnerable stages of development.