The Tasmanian Tasmanian Tasmanian devil (Sarcophilus harrisii) is the largest in the worldCarnivorousMarsupial. Despite the fact that it has been given the title of "largest", it is more like a ** version of a red panda, with a jaw that can open at a large right angle of 80 degrees, ready to bite off your finger at any time. Interestingly, wild Tasmanian devils usually behave docilely and calmly when confronted by humans, while in captivity, they show greater aggression towards humans. Researchers speculate that Tasmanian devils in captivity have to stay awake to cope with the arrival of tourists, which may be the reason for the increased aggression.
As a result, Tasmanian devils are commonly referred to as "devils" or "demons" today, and the first name given to them by early explorers was ".Beelzebubpuppies", and even upgraded in the 19th century to "satanic meat lovers", "bear demons", etc. The Tasmanian devil's appearance does have some of the characteristics of a bear, such as round ears and crescent-like markings on the chest, while its teeth, chin, andBite forcewithHyenasSimilar, this is one of a kindConvergent evolutionExamples: Although Tasmanian devils weigh relatively lightly, they make up for it with their tough traits. In addition to scavenging, Tasmanian devils also hunt internet celebrity wombats, wallabies, and nightmariesPossumsand other small mammals, under the cover of black fur. During the day, they hide in underground nests and sleep to relieve the fatigue of working at night.
Tasmania is a picturesque placeScenery, in this beautiful and inhospitable land, the Tasmanian devil facesCancerThis war. CancerYesGenetic mutationscaused by uncontrolled tissue growth, resulting in the majorityCancerare able to detectTumorsexists. However, the Tasmanian Tasmanian devil faces one that can be transmittedCancer。MostlyCancerArises within the host and dies with the host, but there are someCancerContagious, spread by viruses, bacteria, or other microorganisms. On the Tasmanian devil faceTumorsIn the disease, the cancer cells themselves are the source of infection, spreading from body to body contact between Tasmanian devils. Throughout the breeding season, Tasmanian devils fight, bite, and scratch over mates and food.
In these conflicts,TumorsCells will spread from an open woundHealthSubject's face. Subsequently, these cells grow into disfigured and puffyTumors, which is found around the mouth, face, and neck of the Tasmanian devil. TumorsThe host can be eliminated in a number of ways: by getting a deadly bacterial infection, by stopping the devil from eating, or by transferring to something elseorganscausedorgansFailure. However, it was first discovered in 1996 that Tasmanian devils suffer from the faceTumorsAfter the disease, the disease quickly spread throughout the island, resulting in an overall 80% reduction in species and a local reduction of more than 90%. At that time,ScienceHome to the Tasmanian Tasmanian devil is on the verge of extinction.
Happily, however, some wild Tasmanian Tasmanian devils are starting to show successful resistanceCancersigns. We often think that evolution takes thousands or even millions of years, however, in Tasmania Tasmanian devils and theirsCancerEvolution is happening in a very rapid way. This is one of the most interesting systems in the world for in-depth study of pathogen and host evolution. Tasmanian devils have a very short life cycle, only living for an average of 5 to 6 years, thereforeAlternate generationsVery fast, which gives evolution a selective advantage.
Around 2017,ScienceThe home was found to be suffering from 15 wild Tasmanian devilsCancer, but these Tasmanian devils showTumorsSigns of self-subsidence, the lump on the face gradually turns backHealthof organizations. ScienceSpeculating that the Tasmanian devils appear to have developed antibodies that can fight the disease, they began to study whether the species had evolved to deal with devil facesTumorsThe natural mechanism of disease. The study found that the Tasmanian devilGenomeThe two regions in which they show rapid change, and these two regions contain areas that are known to affect humansCancerrisk and immune function genes, which suggests that Tasmanian devils may be evolving to fightCancercapacity.
Although research is still ongoing, what has been learned from Tasmanian devils may one day be able to be applied to humans. These studies are:Immunization**provides information to help us better use the body's immune system to fight itCancer。Tasmanian devil'sResistanceCrackedCancerThe puzzle provides new ideas for the development of new methods and drugs.
In conclusion, the Tasmanian Tasmanian devil is a striking oneCarnivorousMarsupials, face contagiousnessCancerchallenges. However, they show a striking displayResistance, constantly evolving to fight this deadly disease. This gives us research and understandingCancerImportant clues and revelations are provided.