Every year, thousands of Nepalese villagers make their way to the Himalayan foothills in search of a fungus called yarsagumba. Known for its aphrodisiac properties, the elusive substance sells in China for a price higher than gold. Following Lalita, a young mother among the countless trekkers, this intimate documentary from Maude Plante-Husaruk and Maxime Lacoste-Lebuis paints a stirring portrait of a community exploited by modern commerce. Living in the largely agrarian village of Maikot, a wistful Lalita thinks back on her adolescent dreams of going to university, but an early…
Tag: Biology
Scientist who gene-edited babies is back in lab and ‘proud’ of past work despite jailing
A Chinese scientist who was imprisoned for his role in creating the world’s first genetically edited babies says he has returned to his laboratory to work on the treatment of Alzheimer’s and other genetic diseases. In an interview with a Japanese newspaper, He Jiankui said he had resumed research on human embryo genome editing, despite the controversy over the ethics of artificially rewriting genes, which some critics predicted would lead to demand for “designer babies”. “We will use discarded human embryos and comply with both domestic and international rules,” He…
Forensic spray using jellyfish protein could speed up fingerprint detection
Scientists have developed a forensic spray using a protein found in jellyfish that shows up fingerprints in just 10 seconds. They say that the dye spray could make forensic investigations quicker and more effective. It is also water-soluble and has low toxicity. Traditional forensic methods either use toxic powders that can harm DNA evidence or petrochemical solvents that are bad for the environment, the sale of which is increasingly restricted. The dyes in the spray are based on a fluorescent compound called green fluorescent protein (GFP), which has previously revolutionised…
Academic paper based on Uyghur genetic data retracted over ethical concerns
Concerns have been raised that academic publishers may not be doing enough to vet the ethical standards of research they publish, after a paper based on genetic data from China’s Uyghur population was retracted and questions were raised about several others including one that is currently published by Oxford University Press. In June, Elsevier, a Dutch academic publisher, retracted an article entitled “Analysis of Uyghur and Kazakh populations using the Precision ID Ancestry Panel” that had been published in 2019. The study by Chinese and Danish researchers used blood and…
‘Not always king’: fossil shows mammal sinking teeth into dinosaur
Whether they had sharp teeth, vicious claws or were simply enormous, dinosaurs were creatures to be feared. But a newly identified fossil shows that, at least sometimes, the underdog bit back. Experts revealed the 125m-year-old fossil that froze in time after being taken on by a small mammal a third of its size. They are tangled together, the mammal’s teeth sunk into the beaked dinosaur’s ribs, its left paw clasping the beast’s lower jaw. Researchers said the discovery challenged a long-held view of early mammals as “fodder” for dinosaurs. Dr…
Newly released Chinese Covid data points to infected animals in Wuhan
Newly released data from early in the Covid-19 pandemic has offered a crucial insight into the outbreak’s origins, suggesting that Covid-infected animals were present at a market in Wuhan and could have been a “potential source of human infections”. A pre-print report on Monday by a team of international researchers fleshed out analysis of previously unseen genomic samples collected by Chinese scientists at the Huanan market in Wuhan in the early days of the pandemic. Initially leaked last week after a meeting of the World Health Organization (WHO) committee studying…
New data links Covid-19’s origins to raccoon dogs at Wuhan market
Newly released genetic data gathered from a live food market in Wuhan has linked Covid-19 with raccoon dogs, adding weight to the theory that infected animals sold at the site started the coronavirus pandemic, researchers involved in the work say. Swabs collected from stalls at the Huanan seafood market in the two months after it was shut down on 1 January 2020 were previously found to contain both Covid and human DNA. When the findings were published last year, Chinese researchers stated that the samples contained no animal DNA. That…
‘Gargantuan’: China fossils reveal 70-tonne dinosaur had 15-metre neck
A dinosaur that roamed east Asia more than 160m years ago has been named a contender for the animal with the longest neck ever known. A new analysis of bones from the beast’s neck and skull revealed that the dinosaur, known as Mamenchisaurus sinocanadorum, sported a neck 15metres long, or one-and-a-half times the length of a doubledecker bus. The fossilised remains of the creature were recovered in 1987 from 162 million-year-old rocks in the Xinjiang Uyghur Autonomous Region of north-west China, but the full length of the animal’s neck was…
How seriously should we take the US DoE’s Covid lab leak theory?
What has the US energy department said about the origin of the Covid outbreak? According to the Wall Street Journal, an updated and classified 2021 US energy department report has concluded that the coronavirus behind the recent pandemic most likely emerged from a laboratory leak but not as part of a weapons programme. Does this report mean it is more likely Covid came from a lab? Not necessarily. The report’s conclusion runs counter to that from several scientific studies as well as reports by a number of other US intelligence…
Scientist convicted of editing babies’ genes granted visa for Hong Kong
The controversial bioethicist He Jiankui has been granted a talent visa to Hong Kong, despite having a criminal record in China for illegal medical practices. At a press briefing in Beijing on Tuesday, the disgraced scientist said he was in contact with universities in Hong Kong and planned to research gene therapy for rare hereditary diseases, the Associated Press reported. He shot to fame in 2018 when he revealed that he had edited the genes of twin girls, known as Lulu and Nana, before birth, to try to make them…