In most species, fidelity is just a fantasy

By NATALIE ANGIER

Interestingly, not only adventurous men who get testosterone can love sexual adventures. This action has existed for a long time in tens of thousands of other organisms, appearing in both males and females on every small branch of the tree of life.

Plague occurs very commonly in nature. The four words ' true faithful ' are probably just one thing in imagination. In animals, males and females live together to raise their young children, just as we do. That creates a bond between the parents, forming incredible stamina and feelings for each other. To reaffirm relationships, animals often spend hours together and show affectionate actions. The pair of hamsters snuggled together, the gibbons sang love songs, and the crazy blue-legged birds danced awkward dances.

However, by DNA analysis, biologists have recently discovered that a father-mother society has rarely been associated with unfaithfulness in sex and genetics. When conducting tests with young offspring in a litter in birds, hamsters, primates, foxes or any of the two live animals, there are about 10 - 70% of the offspring who have a ' neighbor ' father. must the father take care of them.

Professor David P. Barash, a psychology specialist at the University of Washington in Seattle, remarked remarkably: Young children have childhood, and adults have adultery. Dr. Barash wrote the book "The Unmarried Marriage of Married" with his wife - Judith Eve Lipton - also a psychiatrist. Dr. Barash cited a scene from the movie ' Heartburn ' in which the character Nora Ephronesque complained to her father about her husband's promiscuousness; The father replied sarcastically: " If you want to be faithful, you should marry a swan. " But now we know that swans are not faithful. perhaps Nora should go to the flatworm Diplozoon paradoxum who lives in freshwater fish, 'males and females will come together when they reach adulthood, their bodies will stick together and live like this until when he died ' Dr. Barash said: ' It is the only animal I have known to live 100% faithfully with my partner . ' Where the only faithful hearts are burning, it belongs to the ill-fated host fish.

Scientists at Adam Mickiewics University and the University of Southern Bohemia described the Animal Behavior exchange in the large gray cypress bird. The beautiful carnivorous breeding birds with silver robes, white belly and black tail, like 90% of birds, are paired to breed. The male bird gives his partner ' wedding gifts ', which can be rodents, lizards, small birds or large insects that are skewered on a stick. But when the male wants to be satisfied now, it will not hesitate to give her a gift even bigger than the gift for her mate. Researchers find that the more valuable a gift is, the greater the opportunity for children to agree to the game.

Another article titled " Paying for monkeys sex " in Animal Behavior was done by Michael D. Gumert of Hiram University, which produced two-year research results on a group of long-tailed monkeys. living near Rimba eco-tourism site in Tanjung Puting National Park (Indonesia). Dr. Gumert has determined that male monkeys pay for their partners with an action that is full of important and very common significance in primates: Combing . He found, while monkeys brushed monkeys or other females for social reasons to confirm their relationship or to be close to their children. Mothers brush their children to comfort them and keep them clean. When the male takes the time to pick up the parasites on an adult female, it wishes to be paid with sex or at least it is close to the children. Dr. Gumert observed the times when males brushed their offspring, in an interview at Nanyang Technological University (Singapore), he said: 89% of the observations' were aimed at those who were females have the ability to mate 'so males will have more chances.

In particular, males change their combing action in a different economic way, the higher or lower the price depending on the availability and quality of the product and the level of competition other buyers. Dr. Gumert said: ' What makes me think that brushing is like a form of payment is how to see how that action changes in different environments. When there are few children, the male will brush the hair longer. When there are many children, the time of grooming will be shortened . ' Males also groomed females that held high positions in the herd significantly longer than they were for low-lying females.

Although the phenomenon of ' adultery ' is very popular, animals are also interested and passionate when given a chance, but no individual will accept it with their partners. People are also not the only species that feels offended when their partner has a ' promiscuous ' affair . Most bitches have to sacrifice half of their ears here, or a piece of skin over there when they touch the head of a much-toothed monkey, bigger and even have a rash. For beetles, males and females live together to build families, they collect feces and roll the clumps that are collected into a large mass so that the female lays its fertilized eggs. Males can take this opportunity to flirt with one or two other females. However doing so means it is joking with your life.

In a study with beetles that had a mate, the female beetle was tied with a rope near its mate. Males quickly took the opportunity to tell pheromon to call other females. Immediately after being freed from the binding rope, the children rushed into the male and knocked it mercilessly. Dr. Barash said: 'Immediately the child rolled its mate into a stool ball, and so considered a proper punishment'.

In the case of red-backed salamanders, both males and females tend to want to control their spouse. They are willing to punish if they suspect their spouse is misled. Penalties can be threats that bite into the mouth or throat. But more cruel is the end of the relationship. Be wary because it can happen to you.