![]() A reviewed study, on the other hand, is on par with a well-vetted, expertly researched textbook. Research that has not been peer-reviewed is akin to a blog - anyone can publish one online with little expertise. 8 in the preprint server Zenodo, which means that the research had not gone through rigorous editorial critically evaluated by scientific experts with an extra degree of scrutiny. Yan did claim that SARS-CoV-2 was made in a lab, but the suggestion is false, misleading, and based on a non-peer-reviewed report that was published in two separate studies on Sept. "It is a man-made virus created in the lab based on the China … the very unique bat coronavirus, which cannot affect people, but after the modification becomes a very harmful virus." "I can present solid scientific evidence to our audience that this virus, SARS-CoV-2 virus, is actually not from nature," she told the television host. 15, 2020, episode of Fox News talk show "Tucker Carlson Tonight," during which she claimed that she had evidence to suggest that the virus was intentionally manufactured and released by the Chinese Communist Party. Yan appeared as a featured guest on the Sept. Li-Meng-Yan, a former post-doctoral student at Hong Kong University, reignited viral internet rumors surrounding the origins of SARS-CoV-2, the coronavirus responsible for COVID-19 and the 2020 pandemic. ![]() And, please, follow the CDC or WHO for guidance on protecting your community from the disease.Ĭontroversial and outright false claims made by Chinese Virologist Dr. Become a Founding Member to help us hire more fact-checkers. Submit any questionable rumors and “advice” you encounter. Read the latest fact checks about the vaccines. Find out what we've learned and how to inoculate yourself against COVID-19 misinformation. This, in turn, may have led to other changes in the skull and neck, favoring a larger brain, better thermoregulation and more advanced speech organs.Snopes is still fighting an “infodemic” of rumors and misinformation surrounding the COVID-19 pandemic, and you can help. What’s more, while animal muscle eaten straight from the carcass requires a lot of ripping and tearing-which demands big, sharp teeth and a powerful bite-once we learned to process our meat, we could do away with some of that, developing smaller teeth and a less pronounced and muscular jaw. A brain is a very nutritionally demanding organ, and if you want to grow a big one, eating at least some meat will provide you far more calories with far less effort than a meatless menu will. That mattered for reasons that went beyond just giving our ancient ancestors a few extra free hours in their days. Overall, Zink and Lieberman concluded, a diet that was one-third animal protein and two-thirds OSUs would have saved early humans about two million chews per year-a 13% reduction-meaning a commensurate savings in time and calorie-burning effort just to get dinner down. For OSUs, pounding was best-a delightful fact that one day would lead to the mashed potato. Slicing worked best for meat, not only making it especially easy to chew, but also reducing the size of the individual particles in any swallow, making them more digestible. On average, they found that it required from 39% to 46% less force to chew and swallow processed meat than processed root foods. According to Harvard University evolutionary biologists Katherine Zink and Daniel Lieberman, the authors of the Nature paper, proto-humans eating enough root food to stay alive would have had to go through up to 15 million “chewing cycles” a year. They pack a bigger nutritional wallop, but they’re not terribly tasty-at least not raw-and they’re very hard to chew. ![]() A better alternative were so-called underground storage organs (USOs)-root foods like beets and yams and potatoes. But they’re also not terribly calorie-dense. Being an herbivore was easy-fruits and vegetables don’t run away, after all. It was about 2.6 million years ago that meat first became a significant part of the pre-human diet, and if Australopithecus had had a forehead to slap it would surely have done so. As a new study in Nature makes clear, not only did processing and eating meat come naturally to humans, it’s entirely possible that without an early diet that included generous amounts of animal protein, we wouldn’t even have become human-at least not the modern, verbal, intelligent humans we are.
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