Jokes and wonders in the world of animal
Homosexuality and sexual oddity in the animal world
Some believe that the sex of the animal world does not contain only the sexual practices "natural", but the reality is far from this belief, there are between animals practice homosexual males, and sex between females just as similar to homosexuality in humans, and during the next lines we will try to shed light on Some examples of animal species that have sex in ways that "abnormal" ...
Has provided a new U.S. study by University of California amazing results on the causes of homosexuality in several species of animals and birds, may open the door to determine the causes of the phenomenon in humans as well, but some may cause a negative shock to homosexuals.
Although scientists are aware that for decades the existence of cases of homosexuality in animals of different species, including birds and reptiles, but it was confusing, as the reasons for the persistence of these practices are still not known, especially as they do not lead to procreation and reproduction.
Among the assumptions that emerged from the study after a year-long research, that the abnormal practices in animals does not include access to a permanent partner, but some animals do not exercise this kind of sex only in the absence of females, and if they return, these practices disappear
Sexual oddity in the animal world
For example, the lion's 50 today in the process of intercourse, when the female in the case of accept, and only 1% of the times lead to pregnancy.
Scholars have noted that biological males Australian frog is trying to have intercourse with anything is in their way, such as a bottle, females and even dead fish, which may lead to death of fish at times.
There is a kind of banana flies have semen, containing a toxic substance to the extent that it eliminates the female completely, but the effect was slow to catch the female status fertilized eggs to die after that, and thus becomes the male killer is the first and last in her life.
As some animals and insects have another effective way to prevent the mixing of "genealogy," a close female genital opening after intercourse, so as to prevent occurrence of sexual intercourse before the last fertilization of the egg.
For example .. Male mice sperm household contains a substance converted into a solid shut down when the female genital opening long enough to fertilize an egg when these mice are "cork" of stiffness to the point that the mouse hurt if you try to keep Altsekerp force
But when the dogs are female by clicking on the penis, so do not let him shirk after ejaculation, so as to give the female Mnuyat male chosen by the opportunity to reach the egg, this prevents the rest of the males to engage in a critical period at least, and therefore saves that the egg had been vaccinated already Mnuyat of dog they have chosen. There is some kind of locust green color, where the female from eating the head of the penis during the process of pollination and before the end command, body just mentioned is able to continue to complete the process of pollination without the head, but the female need for more power during the process of the vaccine, which is paid to the use of Mqahha head. And the world live without sex ... Researchers reported that there is a kind of Amazonian ant has evolved in abandoned about sex with him and turned to the whole community of females, and reproduce this kind of ants, known as "Mikosiboros smithii" through the reproduction of queens for the production of genetically female matches. Confirmed Professor Anna Himmler University of Arizona, that this type called "a world without sex," where he found that the genetic fingerprint of each ant are identical and cloned from the Queen, pointing out that studying these insects were found to be capable of sexual encounter. She Himmler that in insect societies are several types of reproduction, but this type of ant evolution in revolutionary unusual, saying she and her colleagues do not know what became of this type unisexual hundred percent, how much of the time required to achieve this development. And concluded that Himmler would be further genetic experiments to determine how much it took time for the occurrence of this revolutionary development is unusual, there is a feature of life without sex, pointing out that this leads to "avoid the cost of gene to produce male and double female products, thereby doubling each generation by one hundred percent ". The diversity in the world generations of insects produce more resistant to diseases, which does not occur in insect populations reproduced if there is a problem in one, it will move to the other automatically. Amusing tales of marriage
Female hyenas prefer not to inbreeding
The researchers pointed out that the preference for male stranger helps to avoid the limitation of the reproductive process in a narrow range in all groups of hyenas.
The researchers in their study, published in the journal "Nature" that males that have been observed to respond to your favorite female had the highest success rate in breeding in the long run.
The researchers monitored the progress reproduction of the eight groups of hyenas is a resident in the Ngorongoro Carter in Tanzania and then identified and genetically parents hyenas emerging during a period of ten years, and saw that the reason for the exodus of most of the male away from her group of origin is the preference of female to male new entrants to the group are male immigrants from the other group after the birth of female.
They said that unlike humans, female hyenas do not want to know the young to their father because he does not participate in the upbringing of his sons, and the female animal spotted hyena, which meet many of the male during their life.
MALE octopus paired in the dark
A recent scientific study showed that the process of mating said Australian octopus are often in the dark, so it does not know whether he was dealing with the LLC or female care only after the sensitive target.
This is achieved mating after Leeds Octopus One limbs in the body of the other, so flirts Male Octopus Error male like him as a female, but the meeting ends quickly and amicably, but the meeting between a male octopus and female partner may go on for more than an hour and a half hours to make sure of the success of the enrichment process.
Birds, "Goldfinch" is not only one pair
In the same context, stressed the scientific team that 25% of the female goldfinches not only the one pair, which confirmed the DNA of eggs and excreta in Bash, different genes and genetic information guide on the presence of more than one type of birds and explain that scientists female resort to cohabitation with more than a bird, the belief that this would help a good fertilization of eggs.
He pointed out that one of the scientists are not sure yet whether these males of the same type or of other types.
Female nematodes become a male for breeding
Reached U.S. scientists that the female nematodes change their sex before they reach the stage reached, where you expect a female if the season that will live when you reached a season flourishing of life and reproduction, they remain on the sex feminine, but that season was barren, she becomes the male.
And has a female nematode two chromosomes, "X", while have male chromosomes and one which, if she felt the female is the amount that the season will be prosperous after puberty, they would abandon chromosome "X" and one to become a male in terms of genetic, where the numbers of male worms is less than than females, and females can vaccinate themselves to have a watchdog in case they could not access to male
Insect cicada emerge after 17-year-old to breed
Emerged recently plains of Virginia American insect "cicada", known in English "Cicada", and live insects in the ground and feed on the roots oftrees, and out every 17 years to mating for a period of two weeks, then lay eggs before they die and perish.
The advantage of the life cycle of this insect as stated longer than the femaledie once egg-laying
Emerged recently plains of Virginia American insect "cicada", known in English "Cicada", and live insects in the ground and feed on the roots oftrees, and out every 17 years to mating for a period of two weeks, then lay eggs before they die and perish.
The advantage of the life cycle of this insect as stated longer than the femaledie once egg-laying
Photos Animal World
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