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沈阳什么医院治疗风疹团好
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发布时间: 2025-06-01 04:12:27北京青年报社官方账号
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  沈阳什么医院治疗风疹团好   

MORGANTOWN, W.V. – Murder hornets have had their time in the spotlight. Now, scientists say they've discovered “zombie cicadas.”It's a playful name from researchers at West Virginia University, who say they've found that a parasitic fungus, called Massospora, can play mind games on cicadas, causing them to infect others.Researcher showed that the psychedelic fungus can manipulate male cicadas into flicking their wings like females – a mating call – which tempts unsuspecting male cicadas and infects them.The fungus contains chemicals like those found in hallucinogenic mushrooms, according to research published in the journal PLOS Pathogens.“Essentially, the cicadas are luring others into becoming infected because their healthy counterparts are interested in mating,” said Brian Lovett, study co-author and post-doctoral researcher with the Davis College of Agriculture, Natural Resources and Design. “The bioactive compounds may manipulate the insect to stay awake and continue to transmit the pathogen for longer.”The authors of the study compared the effects of the fungus to a “B-horror movie.” Massospora spores gnaw away at a cicada’s genitals, butt and abdomen, replacing them with fungal spores. Then, Lovett says they “wear away like an eraser on a pencil.”Lovett also compared the transmission of the behavior-modifying virus to rabies. He says both rabies and entomopathogenic fungi enlist their living hosts for successful “active host transmission.”“When you're infected with rabies, you become aggressive, you become afraid of water and you don't swallow,” Lovett said. “The virus is passed through saliva and all of those symptoms essentially turn you into a rabies-spreading machine where you're more likely to bite people."In that sense, Lovett says many of us are familiar with active host transmission.“Since we are also animals like insects, we like to think we have complete control over our decisions and we take our freewill for granted,” he said. “But when these pathogens infect cicadas, it's very clear that the pathogen is pulling the behavioral levers of the cicada to cause it to do things which are not in the interest of the cicada but is very much in the interest of the pathogen.”Researchers say cicada nymphs could encounter Massospora in their 17th year as they emerge from the ground to molt into adults or on their way down to feed on roots for 17 years.“The fungus could more or less lay in wait inside its host for the next 17 years until something awakens it, perhaps a hormone cue, where it possibly lays dormant and asymptomatic in its cicada host,” said co-author Matthew Kasson.As grotesque as an infected decaying cicada sounds, researchers say they’re generally harmless to humans. They also reproduce at such a rate that the fungi’s extermination of hordes of cicadas has little effect on their overall population.“They're very docile,” Lovett said. “You can walk right up to one, pick it up to see if it has the fungus (a white to yellowish plug on its back end) and set it back down. They’re not a major pest in any way. They’re just a really interesting quirky insect that’s developed a bizarre lifestyle." 3172

  沈阳什么医院治疗风疹团好   

More proof that baby animals are just like children, video showing a nearly 4-month-old rhino at the Cincinnati Zoo playing in the mud during a rainstorm.The zoo shared a video on their Facebook page of Ajani Joe jumping, slipping and frolicking in the slick mud. 271

  沈阳什么医院治疗风疹团好   

NASA has lost priceless relics of space history, largely because of poor record keeping and follow-through, the agency's watchdog concluded.The inspector general recently found "NASA does not have adequate processes in place to identify or manage its heritage assets."That has led NASA to lose track of items that flew in space, such as "an Apollo 11 lunar collection bag that contained lunar dust particles," and other historically significant items, like a prototype lunar rover that was sold to a scrap yard.NASA told the inspector general's office in a memo that it would develop better processes for dealing with historical items by the spring of May 2020. The agency did not immediately respond to CNN for comment.The rover turned up "in a residential neighborhood in Alabama" and was spotted by an Air Force historian. When contacted by the government, the owner "expressed interest in returning the vehicle to NASA."But the agency lost track of the vehicle because it did not follow through."After waiting more than 4 months for a decision from the Agency, the individual sold the rover to a scrap metal company," the inspector general found. "NASA officials subsequently offered to buy the rover, but the scrap yard owner refused and, realizing its historical value, sold the vehicle at auction for an undisclosed sum."In another instance, NASA lost track of a bag containing moon material, which was eventually sold for .8 million.The "Apollo 11 lunar collection bag" was "seized by the Federal Bureau of Investigation from the home of a former chief executive officer for the Kansas Cosmosphere and Space Center during a criminal investigation," the IG found, then sold at a Marshals Service auction. NASA learned of the bag in 2015 when the purchaser asked the agency to verify its authenticity, but a judge turned down NASA's request to take possession of the bag, and the unnamed individual auctioned it off.As the Space Shuttle program wound down, NASA improved its processes for keeping track of historical artifacts, the report said. But that has not helped the agency recover items dating to the Mercury, Gemini and Apollo space missions of the 1960s and 1970s.Items from that era, the report said, have shown up in online auctions because "NASA freely gave property as gifts to astronauts and other employees and contractors." 2360

  

MoviePass, the struggling movie subscription service, will limit customers to three movies per month.The company is trying to burn less cash so it can stay in business.Under the previous plan, customers could see one movie per day in theaters. The change to three movies per month takes effect August 15. MoviePass says 85% of its customers already see no more than three per month.The company also announced Monday that it will keep the monthly subscription price at .99. It is backing away from a plan, announced just last week, to raise the price to .99.MoviePass CEO Mitch Lowe described the change in an interview earlier Monday with The Wall Street Journal.The stock of MoviePass's parent company, Helios and Matheson, closed last Friday at just 7 cents.The-CNN-Wire 785

  

NATIONAL CITY, Calif. (KGTV) - The National City City Council voted 4-1 Tuesday night to introduce a new ordinance that aims to close a loophole in a state law that prohibits the retail sale of cats, dogs and rabbits.Enacted on January 1, 2019, the new state law prohibits stores from selling animals unless they come from shelters or non-profit rescues. However, some pet stores have continued to sell what appear to be purebred and designer mix puppies that come from a small group of newly formed rescue organizations.One of those groups is called Bark Adoptions, based in Menifee. A 10News investigation found Bark Adoptions had been importing puppies from another supposed rescue in Iowa that had ties to commercial breeders.At National City Puppies, one of the two remaining pet stores in the city, signs on the dog cages in May showed they came from Bark Adoptions.The manager of National City Puppies, David Salinas, said he did not know where the dogs at his store came from beyond the listed rescues. But he defended his store in front of the city council, saying it comes down to consumer choice.“It’s the American way to have the freedom to choose where to buy a puppy,” said Salinas.As written now, the new ordinance says “a pet shop or retail pet store or its operator shall not sell, deliver, offer for sale, barter, auction or otherwise dispose of a cat, dog or rabbit.”There are exceptions, however, that would allow pet stores to offer “a cat, dog or rabbit owned by an animal shelter or animal rescue organization for purposes of adoption” but only if “the pet shop does not receive any fee from the adoption and does not have any monetary or ownership interest” in the animals. The ordinance still has to come back to the city council for a second reading and adoption before it goes into effect. 1835

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