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Brown bears have been found to communicate with one another through a unique method involving their feet. Researchers from Poland, Spain, and Austria discovered that these animals possess scent glands in their paws, which release over 20 different chemicals as they walk. By twisting their feet, bears leave behind chemical signatures in their footprints, conveying vital information about their presence, sex, age, and reproductive status to other bears in the area. This behavior is particularly important for these largely solitary creatures, as it helps them avoid competition and locate potential mates. The study, published in *Scientific Reports*, involved tracking bears in Poland and filming them in Spain over several years, confirming that bears actively use this foot marking technique. Interestingly, male bears were observed to be more frequent "dancers," often wearing down grass along their trails to bare soil. 
Published: May 04 2025, 6 ameznews.inGenetic analysis of hundreds of mammoths has shed light on their evolutionary history, revealing how these Ice Age giants adapted to environmental changes. Researchers from Stockholm University and the Centre for Palaeogenetics sequenced the mitochondrial genomes of 34 previously unstudied mammoths from North America and Siberia, some dating back over 129,000 years. By comparing these mitogenomes with over 200 existing samples, the study traced significant branches in the mammoth family tree to major climatic shifts and population dynamics during the Pleistocene Epoch. Notably, a population bottleneck around 285,000 years ago likely reduced genetic diversity, followed by a surge in new lineages. The findings suggest Siberia as the original homeland for mammoths and indicate that three genetic groups emerged in the Late Pleistocene, all sharing a common ancestor approximately 780,000 years ago. This research highlights the importance of mitochondrial DNA in understanding mammoth evolution and diversity.
Published: Apr 30 2025, 4 pmeznews.inIn the ongoing debate over which gender experiences more pain, the comparison between childbirth and getting kicked in the testicles remains a contentious topic. Childbirth is often cited as the pinnacle of pain, involving hours of intense contractions and the physical trauma of delivering a baby through a narrow birth canal. This process can lead to severe complications and long-lasting discomfort. Conversely, a blow to the testicles can induce immediate, excruciating pain that radiates throughout the abdomen, potentially resulting in nausea or even hospitalization. Experts suggest that the evolutionary design of testicles, which are sensitive and located outside the body for temperature regulation, contributes to their vulnerability and the intensity of pain experienced. Ultimately, pain is subjective, and while some may argue for one side or the other, the conclusion drawn by many is that both experiences are profoundly painful, leading to a rather unsatisfying tie in this age-old debate.
Published: May 02 2025, 11 pmeznews.inIn a bizarre twist on parental fears, the crocodile paradox presents a scenario where a crocodile, holding a child hostage, challenges parents to predict whether it will eat the child or let them go. This paradox, rooted in ancient philosophy, highlights the complexities of self-referential statements, akin to the liar's paradox. If a parent predicts the crocodile will release the child, it does so, confirming their guess. However, if they predict it will eat the child, the crocodile faces a dilemma: it cannot eat the child without contradicting the parent's prediction. Philosopher Stamatios Gerogiorgakis explains that this creates a "rationality gap," where every choice leads to an irrational outcome. Ultimately, while one could theoretically "beat" the paradox by predicting the worst, the emotional stakes make such a strategy implausible, suggesting that perhaps avoiding both crocodiles and philosophical quandaries is the wisest course of action.
Published: Apr 30 2025, 9 pmeznews.inIn the 1990s, Romanian-Australian economist Stefan Mandel devised a systematic approach to winning lotteries, achieving remarkable success by winning 14 times. Initially using his strategy in Romania, Mandel later moved to Australia and then the US, where he identified lotteries with jackpots exceeding the cost of purchasing every possible combination of numbers. Notably, he targeted the Virginia lottery, which had only 7,059,052 combinations, making it feasible to buy nearly all tickets when the jackpot reached $15.5 million. Despite logistical challenges and the need for significant investor backing, Mandel's team managed to purchase 6.4 million tickets, securing the winning combination. Although his methods raised eyebrows and led to investigations by the FBI and CIA, no illegal activity was found. Ultimately, Mandel's innovative strategy earned him millions, allowing him to retire to a beach house in Vanuatu.
Published: May 04 2025, 9 pmeznews.inChongqing, a sprawling megacity in China, holds the title of the world's largest city by area, covering over 82,400 square kilometers—comparable to the size of Ireland or Austria. With a population exceeding 32 million, it surpasses major cities like New York and Mexico City, which are significantly smaller in both area and population. Nestled at the confluence of the Jialing and Yangtze rivers, Chongqing's unique geography features neighborhoods clinging to cliffs and a complex network of elevated roads and metro lines. While its vast size includes extensive rural regions, more than 70% of its population resides in the urban area. Chongqing's rapid growth began in the late 20th century, driven by China's economic reforms, transforming it into a vital transportation hub with a rich history dating back over 3,000 years. Despite potential population declines, Chongqing remains a symbol of China's urbanization and development.
Published: Apr 30 2025, 11 pmeznews.inArchaeological evidence has unveiled a significant ancient city in Morocco, dating back 5,400 to 4,900 years, which researchers claim was the largest urban settlement in Africa outside the Nile Basin. Located at Oued Beht, about 100 kilometers inland from Rabat, the site exhibits extensive trading links with Iberian settlements across the Strait of Gibraltar, suggesting a dynamic exchange of goods, including ivory and ostrich eggs. The findings include sophisticated pottery, stone tools, and evidence of domesticated animals, indicating a complex agricultural society. Professor Cyprian Broodbank of Cambridge University emphasizes the importance of recognizing the contributions of African communities to early Mediterranean societies. The study, published in *Antiquity*, highlights the need to view Oued Beht within a broader context of Mediterranean-Atlantic interactions during the later fourth and third millennia BC, challenging previous assumptions about the region's historical significance.
Published: May 04 2025, 5 pmeznews.inUnderpants, a daily staple for many, have sparked curiosity about their design, particularly the decorative bows found on women's underwear. While some speculate that these bows originated from pre-elastic days when undergarments were secured with ribbons, there is little evidence to support this claim. A Reddit user suggested that the bows serve a practical purpose, helping to identify the front of the garment in low light, while also adding a feminine touch. Historically, women's undergarments evolved from petticoats and chemises to more decorative drawers in the 1800s, with bows possibly remaining as a stylistic choice after the introduction of elastic. Unlike men's underwear, which has largely abandoned such embellishments, the bow may simply be a charming addition by manufacturers, reflecting a broader trend in fashion where aesthetics often take precedence over function.
Published: May 04 2025, 12 pmeznews.inA viral online test, "Is My Blue Your Blue?", has sparked a lively debate over the subjective nature of color perception, particularly the distinction between blue and green. Users are invited to categorize various shades into either team blue or team green, ultimately revealing their personal boundary hue. The test highlights how cultural influences shape color interpretation; for instance, in Italian, terms like _turchese_ and _azzurro_ denote specific shades of blue, while _verde-acqua_ refers to a color between green and cyan. This phenomenon is echoed in languages such as Japanese and Welsh, where the words for blue encompass shades that English speakers might classify as green. The Himba people of Namibia illustrate this further, lacking a separate term for blue, which affects their ability to distinguish between colors that Westerners see as different. Ultimately, the test serves as a reminder of the diverse ways individuals perceive and categorize colors.
Published: May 02 2025, 3 ameznews.inMorning erections, scientifically known as nocturnal penile tumescence (NPT), are a common occurrence for men, typically happening three to five times during sleep. These spontaneous erections begin in utero and continue throughout life, also paralleling similar physiological responses in women. While the exact cause of NPT remains uncertain, it is associated with REM sleep, where reduced activity of certain brain neurons allows testosterone-driven excitatory signals to trigger erections. Additionally, the release of nitric oxide during REM sleep promotes blood flow to the penis, facilitating the erection. The phenomenon may serve a health purpose by oxygenating erectile tissue, thus preventing conditions like cavernous fibrosis, which can lead to erectile dysfunction. Some theories suggest that NPT might also help prevent bedwetting, although this is less substantiated. Ultimately, these nocturnal events appear to play a crucial role in maintaining male reproductive health.
Published: May 04 2025, 1 pmFor the fastest, latest, not so wokest news, 'experts say' you need to visit Eznews
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