
Largest great white shark ever captured in Florida leaves scientists stunned. It measures 13.8 feet and weighs 1,653 pounds
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The Ocearch research team, known for their groundbreaking studies on oceanic predators, made an unexpected discovery off the coast of Florida and Georgia in January this year. They captured a massive great white shark that is rewriting the record books. This extraordinary shark, known as Contender, is far larger than anything scientists have seen before, challenging previous assumptions about the species.Contender, the largest male white shark tagged by Ocearch in the Atlantic, was recently spotted off the coast of Massachusetts. The shark measures 13.8 feet and weighs approximately 1,653 pounds and it emerged near Nantucket on 18 July, days before Shark Week begins, i.e. July 20. The powerful animal was initially tagged on 17 January off the coasts of Florida and Georgia to aid researchers and conservationists.Researchers estimate Contender to be about 32 years old. While great whites typically live between 30 and 40 years, the National Oceanic and Atmospheric Administration reports that some can reach 70. Since being tagged in January near the Florida-Georgia line, he has pinged more than 40 times. After heading south to Vero Beach, Florida, by February, he then began a 1,000-mile trek northward.Dr Harley Newton, the senior veterinarian for Ocearch, remarked on the remarkable nature of this discovery. He noted that great white males usually reach sexual maturity around the age of 26, typically measuring 3.5 meters. Finding a shark of Contender's size and maturity is a truly rare event in the world of marine research.Contender had previously travelled to the Outer Banks in North Carolina, a typical migration for great whites. To track his movements, the research team attached a Spot tag to Contender's dorsal fin. This device will allow scientists to monitor the shark's path across the ocean, collecting data on his migration patterns, feeding habits, and seasonal behaviors. Since being tagged, Contender has traveled over 470 kilometers, with the most recent signal coming from Merritt Island, Florida.Great white sharks are crucial to the health of marine ecosystems, serving as apex predators that help control the populations of other species and maintain balance within ocean food chains. Their presence supports biodiversity and ecosystem stability. However, growing threats from human activities are endangering their survival. Gaining deeper insight into their behavior and migration patterns is essential for creating successful conservation efforts.In June, Contender was detected again, this time near Cape Hatteras, off the Outer Banks of North Carolina. According to OCEARCH, great white sharks like Contender migrate northward in spring and early summer in search of cooler, prey-rich waters.

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Time of India
10 hours ago
- Time of India
Chikungunya outbreak in China: Is this the dawn of a new medical era? Here's how China is fighting back with drones, AI, and lab-grown mosquitoes
Thousands infected in Guangdong as chikungunya cases surge What is chikungunya virus and how it spreads? High fever Intense joint pain Headaches Rash Fatigue and muscle pain Live Events How is China using drones and AI to fight chikungunya? Widespread insecticide spraying Deployment of drones to identify mosquito breeding sites Introduction of biological agents like larvae-eating fish and lab-bred 'elephant' mosquitoes that eliminate dengue-carrying species Fines up to 10,000 yuan (approx. $1,375) for residents who fail to eliminate standing water Temporary electricity cut-offs for non-compliance What are lab-grown or engineered mosquitoes and why is China using them? Patients isolated despite chikungunya being non-contagious U.S. issues travel alert amid global chikungunya surge Is this China's model for the future of public health? Symptoms to watch and how to protect yourself Rest and fluids Pain relief (excluding aspirin early in infection due to bleeding risk) (excluding aspirin early in infection due to bleeding risk) Monitoring for chronic symptoms in vulnerable individuals Using mosquito repellent Wearing long sleeves and pants Staying in screened or air-conditioned rooms Avoiding outdoor activities during peak mosquito hours Are there vaccines for chikungunya? What should travelers know? Use mosquito repellents Wear long-sleeved clothing Stay in air-conditioned or screened accommodations Avoid outdoor activities during early morning and dusk, when mosquitoes are most active Has the new age of medical science arrived? Key takeaways Topic Details Epicenter Foshan, Guangdong Province, China Cases Reported Over 7,000 confirmed infections (as of August 2025) Spread Mechanism Aedes mosquitoes; not human-to-human Major Symptoms Fever, rash, intense joint pain, headache, fatigue Control Measures Drones, spraying, fines, mosquito-eradication programs Travel Alert U.S. CDC issues Level 2 warning for travelers to affected areas Global Impact Over 240,000 global cases in 2025; nearly 90 deaths Vaccine Status Approved abroad but not yet available in China Prevention Repellents, protective clothing, indoor protection, mosquito control FAQs: (You can now subscribe to our (You can now subscribe to our Economic Times WhatsApp channel China is facing one of its worst-ever public health challenges as a chikungunya virus outbreak spreads rapidly across several provinces. But this time, the country is responding with futuristic tools—drones, artificial intelligence, and genetically engineered mosquitoes. Could this be the beginning of a new era in how the world fights infectious diseases?The current chikungunya outbreak has been concentrated in Foshan, a major city in Guangdong province, where over 7,000 people have fallen ill due to the virus. This marks the largest chikungunya outbreak ever recorded in mainland China, sparking concerns over mosquito control and public health especially alarming is that this is the first major wave of chikungunya infections in China, meaning the local population has no prior immunity—making the region especially vulnerable to a fast-moving aspread by, the same species responsible for dengue and Zika virus. While not usually fatal, the virus can cause, including:For some patients, especially the elderly or those with chronic health conditions, the joint pain can linger for months, making daily life difficult long after the fever has passed. The virus does not spread from person to person, but only through mosquito response to the outbreak, Chinese authorities have launched aggressive anti-mosquito campaigns, drawing lessons from their COVID-era public health playbook. Control measures include:These steps are part of a sweeping 'mosquito-free city' initiative in Foshan, intended to cut the chain of virus transmission before it spreads further across southern government is deployingto identify mosquito breeding grounds from above, especially in hard-to-reach urban corners, rooftops, and construction high-tech drones help health officials, pinpoint problem zones in real-time, and guide teams to eliminate the source of mosquito infestations much faster than traditional a prime example of howis moving beyond hospitals—straight into the heart of public health of the most surprising strategies is the release of bioengineered mosquitoes, including a species nicknamed the "elephant mosquito" (Toxorhynchites splendens). Unlike common mosquitoes, these lab-grown predators don't bite humans—instead, they feed on the larvae of other disease-spreading introducing them into high-risk environments, authorities aim to naturally control the Aedes mosquito population without chemicals or harmful is part of China's biological control approach, blending ecological science and technology to reduce virus transmission at its though chikungunya is not spread between humans, local health departments initially ordered home quarantine and hospitalization for those infected. Patients in Foshan were required to stay in hospitals for at least one week, though home isolation rules have since been precautions, while strict, reflect heightened public health vigilance following the country's recent experiences with COVID-19 U.S. Centers for Disease Control and Prevention (CDC) has issued a Level 2 travel alert for travelers heading to Guangdong and surrounding areas, advising visitors to take extra precautions due to the alert comes amid global chikungunya activity, with ongoing cases in Sri Lanka, Thailand, Bolivia, and parts of Central and South America. According to the CDC, over 240,000 chikungunya cases have been recorded worldwide in 2025, resulting in nearly 90 world is watching as China turns this crisis into a real-time experiment in next-gen epidemic control. By combining data-driven drone surveillance, AI analysis, and biological innovation, China is essentially redefining how public health systems respond to fast-spreading successful, these methods may become a blueprint not just for chikungunya, but for future outbreaks of dengue, Zika, malaria, and other mosquito-borne diseases—especially in tropical and subtropical is currently no antiviral treatment for chikungunya. Most patients recover with:The best defense is. To avoid infection, health experts recommend:Globally, vaccines like IXCHIQ and VIMKUNYA have been approved in the United States and European Union, but they're not yet available in China. These vaccines are considered safe for most adults but not yet recommended for older people due to limited safety U.S. Centers for Disease Control and Prevention (CDC) has issued a Level 2 travel advisory for Guangdong, urging travelers to take enhanced precautions. 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Whether you're traveling to Asia, living in a mosquito-prone area, or simply staying informed, understanding how to prevent and respond to these infections is now more crucial than is a mosquito-borne virus spread by Aedes mosquitoes, not between chikungunya vaccines aren't available in China yet.


Time of India
20 hours ago
- Time of India
Increased miscarriage risk in US linked to THIS everyday chemical. What pregnant women can do
Increased miscarriages after exposure to this chemical? Live Events What experts recommend for pregnant women? (You can now subscribe to our (You can now subscribe to our Economic Times WhatsApp channel Researchers have found that exposure to a certain chemical has specifically increased the risk of recurrent miscarriages in women in the US. A new study has shed light that exposure to certain frequently used chemicals, classified as human carcinogens, may increase the risk of recurring miscarriage, reports researchers have found that exposure to four different types of PFAS chemicals , also known as "forever chemicals," were associated with higher risks of "unexplained recurrent spontaneous abortion". This means recurrent miscarriage in women where the cause is not though recurrent miscarriages are not common in US, with five in 100 women estimated to have two miscarriages in a row, according to the American College of Obstetricians and Gynecologists. The International Agency for Research on Cancer has classified PFAS chemicals, or per-and polyfluoroalkyl substances, as a Group 1 carcinogen—with studies since finding the chemicals can cause a wide range of effects on public identified thousands of variations of PFAS chemicals, but found that exposure to PFBA, PFDoDA, PFHpS, and PFHxS in particular was linked to a higher risk of recurrent chemicals, used for decades across multiple industries, are present in everyday consumer products including nonstick cookware, waterproof clothing, stain-resistant furniture, and even smartwatch researchers in the study said "specific clinical manifestations complicates both diagnosis and treatment" in unexplained recurrent miscarriage. They added that the lack of understanding posed "significant challenges to clinical management and contributes to heightened psychological burden among patients."In the sample, 110 had experienced explained recurrent miscarriage, while 91 were control subjects, and there were no significant differences between the two groups in terms of age, body mass index, occupation or income. And those who had experienced unexplained recurrent miscarriage had higher concentrations of PFAS in their blood samples than those in the control revealed that four chemicals- PFBA, PFDoDA, PFHpS and PFHxS- have positive associations with unexplained recurrent miscarriage."We already know that PFAS are associated with preterm birth, low birth weight, reproductive toxicity, preeclampsia, decreased fertility, and single occurrence of miscarriage," Phil Brown, a professor of sociology and health sciences and the director of the Social Science Environmental Health Research Institute at Northeastern University, told said PFAS were also "associated with gestational diabetes, which in turn leads to a number of harmful outcomes such as preeclampsia and preterm birth."Jennifer L. Freeman, a professor of toxicology at Purdue University, Indiana, also told Newsweek that the study added to "those similarly reporting increased risk of adverse pregnancy and birth outcomes with PFAS exposures," but that more research was needed to learn about "this potential association."While it is yet to be clear how PFAS chemicals may be contributing to recurrent miscarriages, Graham Peaslee, a professor of physics at University of Notre Dame, Indiana said, "PFAS have been shown to be endocrine disrupting chemicals in previous published work." He added, "If a chemical interferes with reproductive organ functions, the endocrine system, then spontaneous miscarriages are one of the unfortunate results."Brown noted that while further research is necessary to understand how PFAS exposure may contribute to adverse pregnancy outcomes, the study's findings could 'shape care for pregnant women in the future,' especially when it comes to blood testing."Blood testing is recommended for people with a history of elevated exposure to PFAS," he said, citing the PFAS committee of the National Academies of Sciences, Engineering, and Medicine (NASEM)."That could be from local industry, contaminated food and water, personal care products, household products, and workplace exposure," he noted that pregnant women can take several steps in light of these findings. One is to ask their healthcare providers to learn about PFAS, order PFAS blood tests, and advocate for mandated health insurance coverage for such PFAS contamination in drinking water is also critical. Brown encouraged expectant mothers to press local water utilities to keep PFAS levels as low as possible in accordance with state and federal guidelines. Installing water filters designed to remove PFAS can further help, along with being mindful of personal consumption habits—avoiding products that contain these chemicals whenever emphasized the importance of recognizing PFAS exposure through food and suggested opting for consumer and food products with fewer PFAS to minimize risk. Peaslee added that, given the wide range of adverse health effects linked to PFAS, everyone—especially those who are pregnant or planning pregnancy—should take steps to limit Brown stressed that while individuals can reduce personal risk, the most effective approach is 'upstream source reduction,' ensuring harmful exposures are prevented at the source rather than placing the responsibility on individuals.


Time of India
a day ago
- Time of India
Not a cloudburst? If Uttarkashi didn't see heavy rain, here's what experts say may have caused Dharali's deadly flood
Satellite Images Show Glacier and Lakes Above Dharali Live Events Uttarakhand's Glacial Lake Risk (You can now subscribe to our (You can now subscribe to our Economic Times WhatsApp channel The flash flood that tore through Dharali village in Uttarkashi on Tuesday may not have been caused by a cloudburst, as initially believed. According to experts and scientists studying satellite and meteorological data, the true cause was likely a glacier collapse or a glacial lake reported by TOI, researchers found minimal rainfall in the region around the time of the incident, which cast doubt on the cloudburst theory. The Indian Meteorological Department (IMD) recorded only 6.5mm of rain in Harsil and 11mm in Bhatwari over 24 hours, far below the typical levels associated with cloudburst-triggered scientist at IMD's regional centre Rohit Thapliyal told TOI, "Only very light to light rain was observed in the affected area over 24 hours. The highest rainfall anywhere in Uttarkashi was merely 27mm."Another senior scientist added that such low rainfall amounts were not enough to trigger floods of this scale. 'It suggests a more powerful event like a glacial lake outburst flood (GLOF) or glacier burst,' the expert accessed satellite images that showed significant glaciers and at least two glacial lakes directly above Dharali. One of these lakes is located just above the Kheer Gad stream, which runs near the village.A scientist told TOI, 'If water was suddenly released due to a glacier collapse or lake burst, it could easily result in a high-energy flash flood, similar to what happened during the Raini disaster in Chamoli back in February 2021.'In the Raini incident, a rock-ice avalanche triggered massive floods, destroying the Rishiganga hydel project and damaging the Tapovan-Vishnugad power plant, with over 200 people losing their to the Wadia Institute of Himalayan Geology, Uttarakhand has over 1,260 glacial lakes, some of which pose major downstream threats. The National Disaster Management Authority (NDMA) has flagged 13 of these as high-risk, with five marked as extremely geologist and former executive director of the Uttarakhand Disaster Management Authority, Piyoosh Rautela, told TOI, 'Disasters like this happen when water accumulates at higher altitudes and is suddenly released. Heavy rain alone cannot cause such destruction.'As rescue and relief operations continue in Dharali, scientists are now focused on analysing satellite data and field evidence to confirm the exact cause of the disaster.