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The world's oceans are teeming with over 33,000 fish species, showcasing remarkable diversity in size and behavior. Among the largest is the whale shark (_Rhincodon typus_), which can grow up to 12 meters (40 feet) long, with a record individual measuring 18.8 meters (62 feet). This gentle giant is a filter feeder, consuming krill and small organisms. Following closely is the basking shark (_Cetorhinus maximus_), also reaching lengths of 12 meters and capable of filtering up to 1,814 tons of water per hour. The giant oarfish (_Regalecus glesne_), often dubbed the "doomsday fish," can reach 11 meters (36 feet) and is known for its vertical swimming. Other notable species include the largetooth sawfish, which can grow to 7 meters (23 feet) and is critically endangered, and the tiger shark (_Galeocerdo cuvier_), known for its ferocity and distinctive markings, reaching lengths of 5.5 meters (18 feet). 
Published: Jun 11 2025, 1 pmeznews.inIn a surprising discovery, researchers have observed Galapagos sharks (_Carcharhinus galapagensis_) using manta rays (_Mobula birostris_) as scratching posts in the Revillagigedo Archipelago, eastern tropical Pacific. Video footage captured in late 2024 and early 2025 shows sharks rubbing against mantas near established cleaning stations, a behavior previously noted in other marine species. The interactions varied, with juvenile sharks often tolerated by the mantas, while an adult shark prompted evasive maneuvers from a manta, suggesting learned behavior from past encounters with sharks. The study raises questions about the role of mantas as mobile alternatives to traditional cleaning stations, particularly in the absence of cleaner fish, potentially influenced by increased tourism and diving activities disrupting these environments. The findings, which have yet to undergo peer review, are detailed in a preprint paper available on bioRxiv.
Published: Jun 12 2025, 7 ameznews.inA new genus of jumping spiders, named _Ourea_, has been discovered in the alpine regions of Aotearoa New Zealand, adding to the estimated 200 endemic species in the country. A team of scientists collected 170 spiders from 19 alpine sites, identifying 12 new species and highlighting the genus's widespread presence across various locations, including Kahurangi and Arthur’s Pass National Parks. Notably, _O. petroides_ emerged as the most common species, likely utilizing a behavior known as ballooning to traverse the mountainous terrain. This technique allows spiders to ascend using silk as a parachute, aided by atmospheric electric fields. While the researchers did not directly observe _Ourea_ ballooning, the isolated mountaintop habitats suggest this method may explain their distribution. The study underscores the significance of _Salticidae_ spiders, which are among the most researched invertebrates globally, yet remain underexplored in New Zealand.
Published: Jun 13 2025, 3 ameznews.inIn the animated film _Finding Nemo_, a scene featuring Bruce the shark raises an intriguing question about the function of shark nostrils, or nares, given that sharks lack lungs. Unlike humans, who rely on lungs to inhale and detect odors, sharks have a distinct olfactory system that operates independently from their respiratory system. Their nares contain a specialized structure called a rosette, which allows them to detect chemical signals in water. Water flows into the nares as sharks swim, or through tiny cilia-like hairs, enabling them to pinpoint prey by following scent trails. Research by Jelle Atema from Boston University reveals that sharks not only seek the highest concentration of odors but also consider water currents, enhancing their hunting efficiency. Thus, while sharks have nostrils, they serve a unique purpose in olfaction rather than respiration, underscoring the complexity of their sensory adaptations.
Published: Jun 13 2025, 2 ameznews.inExercise is widely recognized for its health benefits, yet many individuals experience a painful phenomenon known as a "stitch," or exercise-related transient abdominal pain. This discomfort, typically felt beneath the ribcage during physical activity, can range from a mild ache to a sharp, stabbing sensation. While the precise cause remains unclear, theories suggest it may stem from irritation of the parietal peritoneum, the membrane lining the abdominal cavity, potentially exacerbated by factors such as reduced blood flow to the diaphragm or mechanical stress. To mitigate the risk of stitches, experts recommend avoiding heavy meals before exercise, warming up gradually, and staying hydrated with small sips. Although there is no guaranteed prevention or immediate remedy, stopping the activity often alleviates the pain, with techniques like deep breathing and stretching providing additional relief. Further research is needed to fully understand this common exercise-related issue.
Published: Jun 12 2025, 9 pmeznews.inRussian scientists from the Shirshov Institute of Oceanology have confirmed the emergence of a new island in the Caspian Sea, the world's largest inland body of water, located approximately 30 kilometers southwest of Maly Zhemchuzhny Island. First detected via satellite images in November 2024, the island's existence was validated during a recent expedition, although adverse weather and shallow waters hindered landfall attempts. The Caspian Sea is currently experiencing maximum runoff from the River Volga, its primary water source, but as water levels decline, more of the island may be revealed. Over the past century, the Caspian has seen significant water level fluctuations, with declines accelerating due to climate change, threatening unique ecosystems and species, including the endangered Caspian seal. However, the new island could also provide critical nesting grounds for vulnerable wildlife as the sea continues to recede.
Published: Jun 12 2025, 10 pmeznews.inA new COVID-19 variant, officially named NB.1.8.1 but informally referred to as "Nimbus," is spreading globally, prompting health officials to prepare for a potential rise in cases, particularly in the Southern Hemisphere as flu season begins. Symptoms associated with Nimbus largely mirror those of previous variants, including cough, congestion, headaches, fatigue, sore throat, fever, and gastrointestinal issues. Notably, there has been an increase in reports of severe sore throats described as "razor blade throat." While the World Health Organization indicates that current vaccines should still provide adequate protection, experts warn that respiratory symptoms could also stem from other illnesses, such as hay fever or the common cold. Nimbus has been detected in around 22 countries, and although there is a slight uptick in global cases, the situation remains far from the pandemic's peak. As always, individuals experiencing concerning symptoms should seek medical advice.
Published: Jun 12 2025, 7 pmeznews.inUnder the Trump administration, the relationship between science and governance has become increasingly contentious, with the emergence of "alternative facts" raising concerns about the integrity of scientific communication. Controversial oil pipelines have been revived even as the administration claims to support environmentalism, while references to climate change have been removed from the White House website. Federal agencies, including the EPA and USDA, have reportedly been instructed to halt public communications regarding their research, a move seen as an attempt to suppress information on climate change and environmental issues. Although some gag orders have been rescinded, the rapidity of these restrictions has alarmed many. In response, scientists are mobilizing through protests, open letters, and alternative social media accounts to resist this suppression and advocate for transparency in scientific discourse. As the battle for scientific integrity intensifies, the scientific community is rallying to ensure their voices are heard.
Published: Jun 12 2025, 5 pmeznews.inThe phrase "Crossing the Rubicon" signifies a decisive, irreversible action, rooted in the historical context of Julius Caesar's bold move in January 49 BCE. The Rubicon River, a modest stream in modern Italy, served as a boundary between Roman-controlled territories and Gaul. By crossing it, Caesar defied the Roman Senate, triggering a civil war that ultimately led to his rise to power and the decline of the Roman Republic. This act was not merely about crossing a physical barrier; it symbolized a critical choice amid a backdrop of political instability and social unrest. Caesar's famous declaration, "let a die be cast," encapsulated the gravity of his decision, which set in motion a series of events that reshaped Roman governance and paved the way for the emergence of the Roman Empire. The phrase endures today as a metaphor for taking bold, irrevocable steps in one's life.
Published: Jun 12 2025, 5 ameznews.inIn a rare and exciting development, a "ghost elephant" named Ousmane has been captured on camera for the first time in five years in Senegal's Niokolo-Koba National Park, where only five to ten of these elusive creatures are believed to remain. The footage, recorded by Panthera and Senegal’s National Parks Directorate, shows Ousmane, last seen in 2019, taking a nocturnal stroll. The park's teams are also analyzing dung samples for DNA to determine if other elephants exist, crucial for Ousmane's potential mating prospects. Once abundant, the elephant population has dwindled due to poaching and habitat loss, prompting discussions on enhanced protections and the possibility of establishing a breeding population. Conservation efforts face challenges, as relocating elephants has proven difficult, but success stories, such as the resurgence of West African lions, offer hope for the future of these rare elephants.
Published: Jun 11 2025, 4 pmeznews.inDiagrams and animations depicting planetary orbits often simplify complex gravitational dynamics, omitting the concept of barycenters to make the information more accessible for students. While the Sun is the dominant mass in the Solar System, it does not solely dictate the orbits of the planets. Instead, both the Sun and planets, including the massive gas giants Jupiter and Saturn, revolve around a common center of mass known as the barycenter, which is typically located just outside the Sun's surface due to Jupiter's significant mass. This means that Earth and other planets are not orbiting a fixed point within the Sun but rather this dynamic barycenter. Similarly, the Earth and Moon orbit a point outside the Earth's center, illustrating that celestial mechanics are more intricate than traditional educational models suggest. Understanding these complexities offers a deeper appreciation of our Solar System's structure.
Published: Jun 12 2025, 9 amFor the fastest, latest, not so wokest news, 'experts say' you need to visit Eznews
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