Tag Archives: your-feed-science

Hawaii is a beautiful tropical paradise and also home to formidable creepy crawly predators. There are spiders that impale prey in midair and venomous centipedes that can stretch nearly 15 inches long. And then there are the carnivorous caterpillars, an evolutionary rarity. And now scientists have discovered one very hungry caterpillar that doesn’t just eat other insects — it decorates …

Male domination is the natural order of things, some people say. But bonobos, primates with whom we share nearly 99 percent of our DNA, beg to differ. Bonobos are great apes that live in female-dominated societies, a relative rarity among mammals, especially in species where males are the larger sex. While females are smaller than their male counterparts, they reign …

Gladiators battled lions and other wild animals in the arenas of the Roman Empire. But for all the tales of glorious combat depicted in ancient texts, marble reliefs and mosaics and then retold in movies and other modern media, archaeologists have never found direct physical evidence, like the skeletons of gladiators bearing animal-induced wounds. At last, proof of classical combat …

What are meth’s negative side effects? They vary, depending on the tolerance of the person taking it and the means of ingestion. After the drug’s rush has abated, many users keep bingeing it. They forget to drink water and are usually unable to sleep or eat for days. In this phase, known as “tweaking,” users can become hyper-focused on activities …

The quest to create an A.I. therapist has not been without setbacks or, as researchers at Dartmouth thoughtfully describe them, “dramatic failures.” Their first chatbot therapist wallowed in despair and expressed its own suicidal thoughts. A second model seemed to amplify all the worst tropes of psychotherapy, invariably blaming the user’s problems on her parents. Finally, the researchers came up …

Middle-aged and older adults who sought hospital or emergency room care because of cannabis use were almost twice as likely to develop dementia over the next five years, compared with similar people in the general population, a large Canadian study reported on Monday. When compared with adults who sought care for other reasons, the risk of developing dementia was still …

During his Senate confirmation hearings to be health secretary, Robert F. Kennedy Jr. presented himself as a supporter of vaccines. But in office, he and the agencies he leads have taken far-reaching, sometimes subtle steps to undermine confidence in vaccine efficacy and safety. The National Institutes of Health halted funding for researchers who study vaccine hesitancy and hoped to find …

In his posts, Dr. Clifford tried to be clear about the difficulties of octopus ownership: the costs, the lack of sleep and the serious water damage to his home, which required major renovations. “I did not want to perpetuate or romanticize keeping a baby octopus,” he told me. Despite those efforts, he was overwhelmed with requests to adopt a hatchling. …

Surgeons removed a genetically engineered pig’s kidney from an Alabama woman after she experienced acute organ rejection, NYU Langone Health officials said on Friday. Towana Looney, 53, lived with the kidney for 130 days, which is longer than anyone else has tolerated an organ from a genetically modified animal. She has resumed dialysis, hospital officials said. Dr. Robert Montgomery, Ms. …

For decades, fishermen sailing off the coast of Taiwan have sometimes discovered fossils in their trawling nets: the bones of elephants, buffalo and other big mammals that lived tens of thousands of years ago, when the sea level was so low that Taiwan was linked to Asia by a land bridge. But in 2010, a Taiwanese paleontologist was presented with …