eznews.inMen are, on average, 13 centimeters (5 inches) taller than women, a difference attributed to sex hormones and growth genes, though the genetic mechanisms behind this gap remain poorly understood. A new report highlights the role of hormones like testicular androgens in promoting male height from puberty, yet the interplay between these hormones and genetic factors is still unclear. Previous attempts to identify a male-specific growth gene on the Y chromosome have failed, leading researchers to focus on the _SHOX_ gene, present on both X and Y chromosomes. Their findings indicate that _SHOX_ is more active in men, potentially explaining the height disparity. Supporting evidence from a study of over 928,000 individuals shows that an extra Y chromosome correlates with a 3.1-centimeter height increase, while abnormalities in _SHOX_ lead to a greater height reduction in men than women. The research suggests _SHOX_ plays a significant role in height regulation, though other unidentified genes may also contribute. 
Published: Oct 28 2025, 2 ameznews.inA recent study from the University of Cambridge and Meta Reality Labs has raised questions about the value of ultra-high-definition (UHD) televisions, which boast resolutions like 4K and 8K. As technology rapidly advances, consumers often find themselves purchasing devices that quickly become outdated. The research focused on the limitations of human vision, specifically examining how many pixels can be effectively perceived. Findings revealed that while the average resolution limit for greyscale images is 94 pixels per degree (PPD), this drops significantly for color images, with PPD values as low as 53 for certain colors. Professor Rafał Mantiuk noted that our brains struggle to process fine details in color, suggesting that UHD TVs may offer more resolution than the average viewer can appreciate. This insight could guide manufacturers in creating technology that meets the needs of the general population rather than catering to exceptional visual capabilities. The study is published in *Nature Communications*.
Published: Oct 27 2025, 9 pmeznews.inA staggering 635 million kilograms (1.4 billion pounds) of cheese is currently stored underground in the United States, a remnant of government intervention dating back to the 1970s. Amid a dairy shortage and soaring inflation, the U.S. government, under President Jimmy Carter, invested $2 billion to support the dairy industry, leading to an overproduction crisis. By the early 1980s, the government was left with 227 million kilograms of cheese, which became a symbol of waste as it was distributed to food banks, often in poor condition. The government exited the cheese business in the 1990s, but by 2016, it began stockpiling cheese again, now stored in limestone caves to prolong its shelf life. This ongoing surplus reflects broader issues in the dairy industry, including environmental concerns and declining consumption, prompting farmers to seek innovative solutions to boost cheese sales.
Published: Oct 24 2025, 7 ameznews.inWhile filming off Rarotonga in the Cook Islands, whale scientist Nan Hauser experienced a life-threatening encounter with a humpback whale that appeared to be trying to protect her from a massive tiger shark. As the whale hoisted her onto its back, Hauser feared for her safety, but later realized the whale's unusual behavior was a protective instinct. After escaping the whale's grasp, she spotted the shark, which she described as "like a truck." Hauser believes the whale's actions likely saved her life, showcasing the species' known altruism. Remarkably, a year later, she was reunited with the same whale, identifiable by distinct markings. Overwhelmed with emotion, Hauser recalled the moment fondly, likening it to reuniting with a long-lost pet. "I miss him," she said, reflecting on the extraordinary bond formed during that perilous encounter.
Published: Oct 24 2025, 4 ameznews.inIn a series of bizarre and unsettling cases, patients undergoing colonoscopies have awakened to the shocking discovery of various insects residing in their colons. Notable findings include a German cockroach, an ant, a fly, a honeybee, a moth, a yellow jacket, and even a ladybug. For instance, a 52-year-old woman had a cockroach nymph removed during her colorectal cancer screening, likely ingested due to a home infestation. Similarly, a 66-year-old man found an ant in his colon after a picnic, while a 63-year-old man was surprised to learn of a fly's presence, despite consuming only clear liquids prior to the procedure. These incidents, while alarming, were ultimately harmless, as the insects were found deceased, raising questions about how they ended up in the digestive tract. Medical experts emphasize the importance of thorough bowel preparation to minimize such unexpected discoveries.
Published: Oct 27 2025, 7 pmeznews.inIn a recent discussion on social media, confusion arose over the concept of straight-line travel from India to the USA, as highlighted by the X (Twitter) account Latest in Space. Despite the post's straightforward assertion, many users struggled to grasp the idea, illustrating the challenges of representing a three-dimensional world on a two-dimensional map. The widely used Mercator projection, created by cartographer Gerardus Mercator in 1569, is known for its navigational advantages, as it depicts constant bearing courses as straight lines. However, this cylindrical map projection distorts size and shape, particularly for landmasses farther from the equator. Consequently, while a straight line on a globe may not appear straight on a flat map, actual travel between the two countries would require minimal steering, as the curvature of the Earth is accounted for in real-world navigation.
Published: Oct 27 2025, 10 pmeznews.inInterstellar comet 3I/ATLAS is set to reach its closest point to the Sun on October 29, at a distance of 203 million kilometers (126 million miles), before embarking on its journey out of the Solar System. This marks the comet's closest approach to a star in over 10 million years. Observations have revealed the comet's high activity, with significant water and dust loss, and a unique anti-tail formation. While visibility has been limited due to its position behind the Sun, the European Space Agency has successfully tracked it, including during its close pass by Mars. This week, the JUICE mission will conduct observations of the comet, which will continue to be visible until it dims significantly. The next notable event will be its closest approach to Earth on December 19, at a distance of 269 million kilometers (167 million miles), with further observations planned for December 2025.
Published: Oct 27 2025, 11 pmeznews.inIn a groundbreaking study, researchers have documented rats preying on bats for the first time, revealing a concerning threat to native bat populations. Observations were made near Hamburg, where invasive brown rats (_Rattus norvegicus_) were seen hunting bats at night using two techniques: capturing resting bats and intercepting them mid-air. Utilizing infrared cameras, the team recorded 30 predation attempts and 13 successful kills at the Segeberger Kalkberg hibernaculum, where rats were noted to patrol the cave entrance, relying on tactile cues rather than sight in near-total darkness. Although no direct hunting was observed at the Lüneburger Kalkberg, evidence of rat activity and bat carcasses suggests a broader issue. The researchers warn that the predation could significantly impact bat populations, highlighting the need for conservation efforts to protect these native species from invasive threats. The findings are published in *Global Ecology and Conservation*.
Published: Oct 27 2025, 9 pmeznews.inScientists at Osaka Metropolitan University have made a significant breakthrough in the potential treatment of liver fibrosis, a condition characterized by excessive scar tissue buildup in the liver. Their research highlights lawsone, a pigment derived from the henna tree (_Lawsonia inermis_), as a promising drug candidate. In experiments with mice, lawsone demonstrated the ability to inhibit the activation of hepatic stellate cells (HSCs), which are responsible for collagen overproduction during liver injury. This inhibition not only reduced markers of liver fibrosis but also encouraged HSCs to revert to a non-fibrotic state. The researchers are now focused on developing a drug delivery system to target activated HSCs, with the aim of offering a treatment that could potentially control or even reverse liver fibrosis. The findings were published in the journal *Biomedicine & Pharmacotherapy*.
Published: Oct 27 2025, 9 pmeznews.inA giraffe exhibiting unusual skin nodules has been spotted in Kruger National Park, raising concerns about a potential papillomavirus infection. Captured by wildlife photographer Marius Nortje, the giraffe's condition, which covers its head, neck, and body, is believed to be caused by bovine papillomavirus (BPV), typically affecting cattle and horses. Dr. Gemma Campling from Worldwide Vets noted that the disease is not life-threatening and may spread through direct contact between giraffes or via oxpecker birds, which can inadvertently transmit the virus while removing parasites. This is not the first occurrence of such symptoms in the area; similar cases were reported in 2007, leading to the euthanasia of affected giraffes for research. Currently, there are no plans to euthanize this giraffe, which is under close observation by wildlife veterinarians.
Published: Oct 27 2025, 10 pmFor the fastest, latest, not so wokest news, 'experts say' you need to visit Eznews
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