eznews.inIndia is home to approximately three-quarters of the world's tiger population, which has rebounded from near extinction due to conservation efforts, doubling between 2006 and 2018. However, the Similipal Tiger Reserve (STR) has seen a rise in black or pseudomelanistic tigers, a result of a genetic mutation known as melanism. This phenomenon, first reported in the 1970s, has led to nearly half of the STR's tiger population exhibiting this rare trait, raising concerns about inbreeding due to limited genetic diversity. The mutation is traced to a single gene and is not found in tigers outside the STR, indicating isolation. A proposed safari for melanistic tigers has sparked controversy among conservationists, who fear it may exacerbate inbreeding. As habitat fragmentation continues to threaten genetic diversity, conservationists aim to introduce new genetic material to these isolated populations to ensure their long-term survival. 
Published: Oct 30 2025, 4 ameznews.inPaleontologists Dr. Lindsay Zanno and Dr. James Napoli have reignited a long-standing debate regarding the classification of certain Cretaceous fossils, proposing that they belong to a distinct species, _Nanotyrannus lancensis_, rather than being juvenile _T. rex_ specimens as previously thought. Their findings are based on a fossil known as the "Dueling Dinosaurs," which depicts a small tyrannosaur engaged in combat with a _Triceratops_. Analysis revealed that this small predator exhibits significant anatomical differences from _T. rex_, including more teeth and longer forearms, and was likely an adult around 20 years old. This challenges the notion of a juvenile _T. rex_ and suggests a more complex ecosystem with diverse predatory strategies at the end of the Cretaceous. The study, published in *Nature*, indicates that dinosaur diversity was thriving prior to the mass extinction event, contradicting earlier beliefs of a decline.
Published: Oct 30 2025, 10 pmeznews.inIn a promising development for the critically endangered vaquita, recent surveys in the Gulf of California have confirmed sightings of between seven and ten individuals, including the birth of new calves. This marks a notable improvement from previous years, where the population had plummeted from 560 in 1997 to just 10 in 2018, prompting the International Whaling Commission to issue its first extinction alert for the species. Conservation efforts, including a ban on gillnets and enhanced monitoring techniques, have been crucial in this recovery. The latest survey, conducted from May to September by various agencies and conservation groups, utilized acoustic monitoring and advanced binoculars to minimize disturbance to the vaquitas. While the species remains at risk, the findings suggest that conservation strategies are effective, providing hope for the future of the vaquita and underscoring the importance of continued protective measures.
Published: Nov 01 2025, 6 pmeznews.inDetermining the richest country in the world is complex, as it depends on the metrics used. According to the UBS Global Wealth Report 2023, the United States leads in total household wealth, boasting nearly $140 trillion, significantly outpacing China’s $84 trillion. However, when measuring average wealth per capita, Switzerland takes the top spot, with citizens averaging over $685,000, compared to the U.S. average of $551,000. Luxembourg also ranks highly, with an average of about $586,000. In terms of median wealth per capita, Belgium leads with just under $250,000, while the U.S. falls to 13th place. The U.S. and China vie for the most billionaires, with the U.S. having 813 and China 814, though the latter is losing billionaires annually. Notably, Slovenia boasts the lowest poverty rate, attributed to policies like free kindergarten education, highlighting a different aspect of wealth distribution.
Published: Nov 01 2025, 4 pmeznews.inAntarctica, covered by ice that blankets 98 percent of its land, is now being revealed in unprecedented detail thanks to advanced imaging technology. The Bedmap2, created in 2013 from extensive data collected by NASA and the British Antarctic Survey, showcases the continent's rugged terrain, including mountain ranges and deep gorges. Notably, the lowest point beneath the Byrd Glacier reaches 2,870 meters below sea level. This detailed mapping is crucial for understanding how ice distribution and melting are influenced by the underlying topography, particularly in the context of climate change. Current estimates indicate that Antarctica holds 27 million cubic kilometers of frozen water, which could raise sea levels by 58 meters if melted. As the ice sheets continue to thaw at alarming rates, contributing to a global sea-level rise of 4 millimeters annually, scientists are now working on the next-generation map, Bedmap3, to further explore this hidden landscape.
Published: Nov 01 2025, 4 pmeznews.inIn 1977, NASA launched the Voyager probes to explore the outer Solar System and interstellar space. Both spacecraft encountered a "wall of fire" at the Solar System's boundary, recording temperatures between 30,000 and 50,000 kelvin (54,000 to 90,000 degrees Fahrenheit) as they crossed the heliopause, the boundary where the solar wind meets the interstellar medium. Voyager 1 became the first to cross this boundary on August 25, 2012, followed by Voyager 2 in 2018. The heliopause is not a fixed edge but fluctuates with solar activity, which was confirmed by the differing distances at which the probes encountered it. Despite the extreme temperatures, the probes survived due to the sparse particle density in that region. Recent findings from both Voyagers revealed that the magnetic fields beyond the heliopause align with those within the heliosphere, providing new insights into the nature of interstellar space.
Published: Nov 01 2025, 5 pmeznews.inThis week in science, a remarkable 126,000-year-old fossil of a rock hyrax, showcasing the world's first recorded "butt-drag," has been unveiled, providing unique insights into ancient animal behavior. In medical advancements, a 71-year-old man in China became the first living recipient of a genetically modified pig liver transplant, surviving for 171 days post-surgery, marking a significant step towards the viability of xenotransplantation. Meanwhile, a new study challenges the long-held belief that tooth-picking is the oldest human habit, suggesting that evidence from dental notches in primate teeth may not support this claim. Additionally, a rare two-headed reptile fossil, dating back 125 million years, has been described as "truly exceptional" due to the rarity of bicephalism in both modern and fossilized species. These discoveries highlight the ongoing exploration and understanding of both ancient life and contemporary medical innovations.
Published: Oct 29 2025, 1 pmeznews.inPrime numbers, the building blocks of mathematics, remain one of the most intriguing and complex subjects in the field, with many fundamental questions still unanswered. Despite their simple definition as indivisible numbers, the mysteries surrounding primes have captivated mathematicians for centuries. Notable unsolved problems include Legendre’s conjecture, Goldbach’s conjecture, and the twin prime problem, but the Riemann Hypothesis stands out as the most significant challenge. This hypothesis concerns the distribution of prime numbers and posits a hidden structure that could revolutionize our understanding of primes. Recent advancements, particularly in sieve methods and probabilistic approaches, have brought mathematicians closer to resolving these issues, with some progress on the twin prime conjecture. Experts remain optimistic about the Riemann Hypothesis, suggesting that a proof could unlock new mathematical tools and insights, fundamentally altering the landscape of number theory.
Published: Oct 30 2025, 6 ameznews.inThe tiny handles on maple syrup bottles, often overlooked during pouring, have sparked curiosity about their purpose. These handles, which date back to at least the 1930s, are believed to be a skeuomorph—an ornamental feature that mimics a design from the past without serving a practical function. This design choice likely originated as a marketing strategy during the Great Depression, aiming to evoke nostalgia for larger stone jugs used historically for storing various liquids, including liquor and molasses. Jean-François, curator at the Canada Museum of History, noted that syrup companies sought to connect their product with the imagery of 19th-century crocks, despite the handles being impractical for modern use. Thus, the handles remain a charming relic of marketing ingenuity rather than a functional element of syrup bottles.
Published: Nov 01 2025, 2 pmeznews.inResearchers have shed light on the purpose of stabilimenta, the zigzag silk decorations commonly found in spider webs, particularly in orb-weaving species like the wasp spider (_Argiope bruennichi_). While previous theories suggested these structures might aid in temperature regulation, water collection, or predator deterrence, new findings indicate they play a crucial role in enhancing a spider's ability to detect vibrations from trapped prey. By analyzing the webs and conducting numerical simulations, scientists discovered that the shape and position of stabilimenta significantly influence how vibrations propagate through the web. For instance, decorations aligned with the web's threads improved vibration detection across a larger area. This research not only deepens our understanding of spider behavior but also inspires potential applications in designing advanced materials with tunable properties. The study, published in PLOS One, emphasizes the need for further investigation into the complex functions of these silk structures.
Published: Oct 30 2025, 10 amFor the fastest, latest, not so wokest news, 'experts say' you need to visit Eznews
India
World
Economy
Science
Health
Showbiz
Contact