creature

Japan sent the wrong creature to eradicate the snakes of an island. The disaster was so great that it has taken half a century to solve it

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Once again, desperate situations lead to extreme measures. Save a species Sometimes it implies “exterminating” another. We have seen it in South Africa and Your plan to annihilate miceeither Injecting radio -material material into rhinos hornscases of Wild cat huntor the plan for exterminate half a million owls. However, sometimes things do not come out as governments imagine. In Japan they know perfectly. The incident of 79. The story begins in 1979 on the Japanese island of Amami ōshima, located in Kagoshima Prefecture. That year, rediscover Amami’s rabbit (Pentalagus Furnessi), an endemic species and considered a “living fossil” due to its evolutionary seniority. Before the finding, it was thought that the rabbit was on the verge of extinction due to the loss of habitat and hunting. The discovery marked a before and after for the conservation of the species and highlighted the importance of protecting the natural environment of the island, home from many other unique species. An event that also underlined the need for higher conservation efforts in Amami ōshima, for example, trying to eradicate or control the population of snakes. A wrong “bomb”. Thus, within a few months, Japan launches a plan. Introduce about 30 mushrooms on the island With the intention of ending the population of snakes, specifically Habu (Trimeresurus flavoviridis), which represented a threat to local inhabitants. The idea, on paper, was a fissure plan: that mushrooms, which are natural snake predators, reduce the number of Habus and improve safety on the island at all levels. However, that project was far from infallible. The mushroom was not the ideal creature to eradicate snakes. In the first place, because they are active animals during the day, therefore, they could not catch the nightly hubs, who continued to inhabit the following decades without problem. What happened as a consequence had a huge ecological impact. A specimen of trimeresurus flavoviridis Depredation of endemic species. Thus, during the day, instead of focusing on the snakes, the mushrooms began to prey a wide range of native species, including several that had no natural enemies on the island until then. That seriously affected local fauna, especially endemic and endangered species, such as Amami’s same rabbit that had just announced happily months ago. Hundreds of thousands of mushrooms. The situation reached such a point, that the mushrooms, carried to eradicate a plague, had become even larger and more dangerous, one than reached around 10,000 copies At its maximum point over the year 2000. The truth is that Japan had already started a mushroom control project in 1993 that was expanding over time. As? About 30,000 traps were placed on the island to capture the animals and cameras with sensors to monitor them were installed. In addition, local residents formed the so -called Amami Mongoose Bustersa team specialized in the capture of mushrooms (they came to capture thousands). The end? In 2018 there was the last official capture of a megosta on the island. It happened in April, and since no creature has been captured for a long period of time, the panel of experts, which has the task of determining if the animal is eradicated from the island, estimated that the eradication rate It was between 98.8 and 99.8% In February of last year, reaching a preliminary conclusion that it is reasonable to say/think that mushrooms are eradicated from the island in current circumstances. Finally, on September 3, 2024, the Ministry of Environment of Japan declared The eradication of non -native mushrooms on the island of Amami-Oshima, declared a natural heritage of humanity by UNESCO. The statement was based on the opinion of the group of experts on scientific bases, taking into account that the capture of mushrooms has not been confirmed for more than six years since the last one in April 2018. A unique case. The Ministry itself did not hide the disaster that supposed the attempt to control snakes in 1979. In fact, and as the administration has announced, it is one of the largest cases in the world in which non -native mushrooms have been eradicated that had been established for so long. After the statement, the government explained that it will withdraw the traps that were placed on the island, although it will continue to watch with cameras to prevent a new group of these small creatures from between again. After all, if it took half a century to get them out of there, any contingency method is more than understandable. A version of this article is PUblicó in 2024 Image | Animalia, Tanaka Juuyoh, Patrick Randall In Xataka | We have just found a surprising remedy against Argentine ants pests: caffeine dose In Xataka | The mission impossible to control the invasive plague that is eating the European pine: biomolecules, piñones and citizen science

Someone ran over a dog in Brazil. The analyzes revealed that the creature was neither a dog nor should it have existed

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The story took place in 2021 and could be the beginning of a film. That year occurs An outrage in an area of southern Brazil. It is not a human, it is a dog to which they move to a rehabilitation center to treat it urgently. The first analysis of the animal attracts the attention of the veterinarians. Subsequent tests left no doubt: he barking and had the appearance of a canine, but they have never seen anything Not remotely similar. Dogxim, hybrid. Yes, that strange dog showed unusual behaviors: he refused to eat croquettes, preferred to hunt rats and climbed shrubs like a fox of the pampas. What at first seemed an individual rarity proved to be A scientific scoop: After months of genetic analysis, a team of Brazilian researchers confirmed that it was the first documented hybrid between a domestic dog (Canis lupus familiaris) and a fox of the pampas (Lycalopex gymnocercus), two species separated by about 6.7 million years of evolution. The animal, a baptized female as “dogx” (Combining “Dog” and “Graxaim do Campo”, local name of the fox), surprised the scientific community for its mere genetic viability, an extremely rare phenomenon between different genres within the family of canids. The proof of the improbable. To certify the hybrid origin of Dogxim, the researchers began by count your chromosomes: It was 76, an intermediate number between the 78 of the dog and the 74 of the Pampas fox. Mitochondrial DNA analysis revealed that his mother was a fox female, and nuclear DNA confirmed a genetic mixture Between dog and fox. The combination was possible because both belong to the Canidae familyalthough NO TO THE SAME GENDERwhich makes your cross even more unusual. In nature, hybrids tend to emerge among evolutionarily near species, such as coyotes and wolves. However, this case is more similar to a hypothetical viable crossing Between humans and chimpanzeessomething considered biologically unfeasible. In other words, the fact that Dogxim existed, and was functional for at least two years, represented an anomaly of high evolutionary and conservationist interest. Dogxim Human influence. There is much more, since the researchers stressed that the existence of Dogxim seemed to have been facilitated by human pressure About ecosystems. The natural habitat of the fox of the pampas, characterized by extensive plains from the Brazilian southhas been increasingly reduced by livestock and urban expansion. The phenomenon, apparently, has forced greater contact between foxes and dogs, particularly those abandoned by their owners in wild areas. This territorial overlap, added to the abandonment of pets, increases the probability of Reproductive meetings between both species. Although foxes are not in danger of extinction, such interaction raises risks, both for the genetic integrity of the species and for their population health, for example, by exposing it to new diseases or harmful genes. A creature and its limits. While some scientists believe that this type of hybrid will continue to be extremely rare, the Dogxim case put on the table the debate on the Effects of hybridization in accelerated environmental change contexts. Although the creature seemed healthy and was transferred to a state center, He died in 2023 For causes still unknown. Its black color, canine inheritance, contrasted with the light fur of the foxes of its species, which probably did it less suitable for surviving In its natural environment. Plus: the interspecific hybrids They usually present genetic, fertility or behavior problems, which makes them more vulnerable. In spite of this, its only existence suggests that the limits of natural hybridization could be more flexible than what was thought, especially in a world where ecological changes are formed between species that did not interact before. Implications It is the last of the legs to analyze. Beyond its anecdotal value, Dogxim poses crucial questions about the conservation of species and the alteration of its evolutionary dynamics by human influence. While there is no evidence that these hybrids can form stable populations, their appearance can have indirect effects, from the introduction of pathogens to the genetic dilution of wild populations. Perhaps for this reason, the researchers urge deepen the study of the ecological and evolutionary consequences of this phenomenon. The hybrid creature, after all, was not simply a genetic curiosity, was a reminder of diffuse limits between species in a world increasingly alteredwhere the unlikely is no longer impossible. Image | Errazking, Thales Renato Ochotorena de Freitas In Xataka | The cloning of dogs is a reality, but it is only the beginning In Xataka | Large dogs live much less than the little ones. Researchers believe they found the answer to mystery

Wild urbanization, heat and cockroaches have turned Brazil into the perfect destination of a creature: scorpion

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In Brazil they have realized a serious problem derived from a common evil in a large number of countries. It was intuited that Wild urbanizationadded to the climatic changes And the extreme heat of the planet were an equation that did not predict anything good. The nation has discovered, very much, something else. The atmosphere of many of its cities has led to authentic cockroaches colonies and, after them, those that devour them: scorpions. Silent invasion. Yes, Brazil is currently facing an alarming Scorpion proliferation In many of its cities, a direct consequence of uncontrolled urban growth and climate change, which has transformed urban environments into ideal habitats for these arachnids. How much? According to the study Posted in Frontiersbetween 2014 and 2023, more than 1.1 million bitesa 155 % increase In just a decade, and the projections estimate up to two million new cases between 2025 and 2033. The situation is especially critical in densely populated areas and with precarious services, Like favelaswhere the combination of crowded housing, accumulation of waste and sewerage systems without control has created the perfect scenario for the expansion of scorpions. These creatures find shelter in cracks, debris and pipes, have abundant food (The cockroaches), and enjoy constant temperatures and high humidity. Plus: Some species are capable of reproducing without mate and can survive more than a year Without feeding, which makes them a resistant threat and difficult to eradicate. A public health crisis. The Guardian told that the increase in temperatures, intense rains and prolonged droughts (increasingly frequent patterns in the context of climate change) have favored the expansion of scorpions, whose natural habitat is now complemented by those Modified urban environments For the human being. Previous investigations had already warned of these animals for adapt to citiesbut current data has confirmed that the phenomenon has climbed to become a health crisis. Only in 2024, it is estimated that almost 200,000 people were chopped And at least 133 died, although experts warn that real figures could be much greater, since many affected do not seek medical attention and are treated at home. Although only 0.1% From the bites it is lethal, the most vulnerable victims are children and the elderly, who run a greater risk of dying even with a single sting. For the rest of the population, the symptoms include intense pain, burning, swelling, redness, tingling and nausea, with a recovery that lasts several days. Misinformation and prevention. And here comes one of the legs to deal with the problem. The British media counted That one of the most complex challenges is the erroneous perception of scorpions. According to researcher Manuela Berto Pucca, they are not natural aggressors of the human being, but They act in self -defense. In fact, they perform key ecological functions when regulating populations of urban insects, yes, such as cockroaches. However, its presence in inhabited spaces has generated an understandable and growing fear, especially among the poorest populations, where the fear of a bite is part of everyday life. The key, According to expertsis in prevention: keep the spaces clean and without moisture, seal cracks, place grilles in drains and carefully check footwear, clothing and towels before wearing them. In addition, the Brazilian health system offers Free treatment and antidotes in certain emergency centers, but researchers insist on the need to act quickly at any sting, without waiting for symptoms to get worse. A call to action. Finally, it should be clarified that the phenomenon It is not exclusive from Brazil. Countries like Paraguay, Bolivia, Mexico, Guyana or Venezuela too They have experienced a worrying growth of “Scorpionism”, The medical term that defines the reactions to these bites, making it a health crisis of regional scale. And in Europe? There are more than 35 native species of scorpion, but there are no comprehensive studies on their populations or comparable expansion has been observed. However, what is happening in South America serves as a global warning on the combined effects of that uncontrolled urbanization and climate change. The international scientific community has stressed that this is an avoidable emergency if more sustainable urban policies are applied, effective sanitation systems and public education and prevention campaigns. For Pucca and his colleagues, the current situation should serve as a catalyst for urgent actionsnot only to protect public health, but also to recover the balance between humans and the rest of the urban ecosystem to which these creatures also belong. Image | Aitivamon Natu, Webysther Nunes In Xataka | The United States national dish faces a worrying future if tariffs are maintained: hamburgers In Xataka | Brazil has the only rare earth mine capable of competing with China. The problem for the US is that China has remained

What is the ‘wounded man’, the most unfortunate creature of the entire Middle Ages: sick, beaten and sewn to Sabblazos

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No matter what happened to you, how bad the week has gone, if you are exhausted after climbing and lowering boxes during a move, you have injured yourself, you have a fever, you have given positive in Covid or yesterday you cut the piss while cooking. No matter how bad that you find yourself and a lot that you suffer is impossible that you are worse than the ‘Wounded man ‘. If there is a unfortunate character in history, one mistreated to the limit, that is him. Nor the Biblical Job. My Héctor dragged by Achilles. Not Julio César with The gross frame dagger. He Wounded man It is the most suffering creature of creation for a very simple reason: it was created for that, to suffer, to support all the hardships imaginable by medieval minds. And yet there we see it in the codices of the fifteenth and sixteenth centuries, with resigned expression, almost unstimated. The wounded man? Exact. It is probably one of the most unfortunate names (and also one of the least original) in the history of humanity; But thus, ‘wounded man’ (‘Wound Man’), is how the diagram is known that for centuries, approximately Between the XV and XVIalthough some outstanding examples can also be found The XVIIillustrated the surgery manuals. The term says it all. The injured man was a representation in which the aesthetic and medical criteria were combined to basically show that: an “injured man.” Although saying so is to fall short. The character was a compendium of catastrophes, a creature that gathered all kinds of injuries, infections and various ailments. Virtually all misfortunes that fit in a medieval mind. Eejmplo of wounded man collected in a treaty of the Wellcom Collection. A pistoning with legs. If it is true that saying that a picture is worth a thousand words, the injured man is his greatest exponent. The figure is not only “injured.” If we showed us the portrait of a real staff, of flesh and blood, it is most likely to be unable to stand up. Not all versions are the same, but usually the injured man used to be crossed by swords, daggers, spears and arrows (some look, others have the cut tip), beaten by garrotes, full of blood cuts and with thorns stuck in the feet. Is there more? Yes. They have also bitten snakes and dogs, has run into poisonous toads and have chopped bees and scorpions. And the above is only ‘skin outside’. Inside the panorama was not much better. The images show it full of bubones that suggest that it has contracted the plague and with smallpox marks. In A particularly ruthless example of the wounded man, prepared in the XV and that today is preserved in the funds of the London’s Wellcom Collection, he is seen with a curtured penis while one of his testicles has an aspect that invites us to think that he suffers a venereal. A medieval celebrity. Today your image may surprise us (or even look exotic), but in its day, during the low Middle Ages and the beginning of the Modern Age, the wounded man was a relatively popular topic in European medical treaties. Jack Hartnellprofessor of the Univerisity of East Anglia and who has dedicated him several Essayscalculate that it has been found at least A dozen of examples in medieval manuscripts and more than twenty manuals printed in the modern age. And those are just known cases. Wounded man preserved in a xylography in the Wellcomo collection. A long (and extensive) trip. “The first known versions appeared at the beginning of the XV in books on the surgical trade, particularly in works by southern Germany related to the famous surgeon Würzburg Ortolf von Baierland,” says Hartenell in An article Posted in Public Domain Review. Interestingly, despite his battered appearance, the injured man survived the fifteenth century, the Middle Ages and the handwritten codices and sneaked into the manuals created with The new technology of printing. In 1497 we found him on the cover of a book on Strasbourg Surgery and In 1678 We can still observe it in the pages of the ‘Full Speech of the Wounds’, of the London surgeon John Browne. The wounded man lived enough to mistreat him with new weapons, not only spears, swords, daggers, arrows and clubs. In 1517 the German military surgeon Hans von Gerdorff included a version in Your field manual in which he saw how the unfortunate man was shot with cannon bullets to the hands and legs. And what exactly did it serve? Good question. Difficult response. And the reason is that its meaning, its role, the purpose it had in the surgical manuals that it illustrated, could vary over time. They recognize it From the well collection, custodian of one of the most fascinating versions that are preserved, the only English specimenincluded in a medical treaty in the late XV. “Its exact purpose is still somewhat mysterious, but presumably served as a reminder of the wounds to which the human body is prone,” He recounts The British institution. At least in some of the first versions, the injured man was accompanied by numerous annotations related to each of his injuries, sometimes more or less extensive texts accompanied by figures, which reinforces his role as a diagram. “A human index”, In words of Hartnell. In the ‘Das Buch der Clurgia’, 1497 manual, we already see it however Free of annotations. Example extracted from a Strasbourg Treaty of 1519. Art or science? Its extensive trajectory and those changes over time has led to different interpretations about what its exact use could be. Hartnell points out, for example, that at least in his first versions he served as a didactic guide, a conductive thread of the manual that facilitated its handling to the surgeon. In A German specimen From the XV we see the character surrounded by numbers and phrases, each related to a different ailment (a sablazo, a bite, an arrow … Read more

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