https://www.sciencedaily.com/news/plants_animals/cats/ Cat news. Read about household contaminants affecting cats, allergies to cats and more. Also find stories on lions, tigers and leopards. en-us Sun, 12 Apr 2026 03:32:50 EDT Sun, 12 Apr 2026 03:32:50 EDT 60 https://www.sciencedaily.com/images/scidaily-logo-rss.png https://www.sciencedaily.com/news/plants_animals/cats/ For more science news, visit ScienceDaily. https://www.sciencedaily.com/releases/2026/04/260401022027.htm Old canned salmon turned out to be a time capsule of ocean health. Researchers found that rising levels of tiny parasitic worms in some salmon species suggest stronger, more complete marine food webs. Because these parasites depend on multiple hosts—including marine mammals—their increase may reflect ecosystem recovery over decades. What looks unappetizing may actually be a sign of a healthier ocean. Wed, 01 Apr 2026 04:20:39 EDT https://www.sciencedaily.com/releases/2026/04/260401022027.htm https://www.sciencedaily.com/releases/2026/03/260323005532.htm Two new species of black bass have been officially identified after decades of confusion with similar fish. Bartram’s bass and Altamaha bass stand out not just in appearance, but in their DNA, revealed through detailed genetic analysis of hundreds of specimens. Scientists say this breakthrough helps preserve a record of these species as habitat changes and hybridization threaten their future. What was once overlooked could soon be at risk of vanishing. Mon, 23 Mar 2026 23:19:35 EDT https://www.sciencedaily.com/releases/2026/03/260323005532.htm https://www.sciencedaily.com/releases/2026/03/260318033111.htm Malaria parasites contain tiny spinning crystals that have puzzled scientists for years. New research reveals they’re powered by a rocket-like reaction that breaks down hydrogen peroxide, releasing energy. This motion may help the parasite detoxify harmful chemicals and manage iron more efficiently. The discovery could lead to new drugs and spark innovations in microscopic robotics. Thu, 19 Mar 2026 07:19:27 EDT https://www.sciencedaily.com/releases/2026/03/260318033111.htm https://www.sciencedaily.com/releases/2026/03/260304184221.htm Scientists have uncovered a crucial weakness in the malaria parasite that could open the door to new treatments. Researchers identified a protein called Aurora-related kinase 1 (ARK1) that acts like a traffic controller during the parasite’s unusual cell division process, ensuring its genetic material is properly separated as it multiplies. When scientists switched off ARK1 in laboratory experiments, the parasite could no longer replicate correctly and failed to complete its life cycle in both humans and mosquitoes—effectively halting its ability to spread. Thu, 05 Mar 2026 00:03:04 EST https://www.sciencedaily.com/releases/2026/03/260304184221.htm https://www.sciencedaily.com/releases/2026/03/260303050628.htm In Yellowstone’s wild chess match between wolves and cougars, it turns out the real power play is theft. After tracking nearly a decade of GPS data and thousands of kill sites, researchers found that wolves often muscle in on cougar kills—sometimes even killing the cats—but cougars never return the favor. Instead of fighting back, cougars adapt. As elk numbers dropped, they shifted toward hunting more deer, which they can eat quickly and in safer terrain, helping them dodge wolf encounters. Tue, 03 Mar 2026 13:10:50 EST https://www.sciencedaily.com/releases/2026/03/260303050628.htm https://www.sciencedaily.com/releases/2026/02/260226042502.htm Baby dinosaurs weren’t coddled like lion cubs or elephant calves—they were more like prehistoric latchkey kids. New research suggests that young dinosaurs quickly struck out on their own, forming kid-only groups and surviving without much parental help, while their massive parents lived entirely different lives. Because juveniles and adults ate different foods, faced different predators, and moved through different parts of the landscape, they may have functioned almost like separate species within the same ecosystem. Fri, 27 Feb 2026 05:08:15 EST https://www.sciencedaily.com/releases/2026/02/260226042502.htm https://www.sciencedaily.com/releases/2026/02/260224023218.htm A newly identified ichthyosaur from the UK’s Jurassic Coast is rewriting part of the prehistoric playbook. Nicknamed the “Sword Dragon of Dorset,” the three-meter-long marine reptile lived during a poorly understood window of evolution when major ichthyosaur groups were disappearing and new ones emerging. Its beautifully preserved skeleton — complete with a blade-like snout and possible last meal — helps pinpoint when this dramatic transition occurred. Tue, 24 Feb 2026 07:50:35 EST https://www.sciencedaily.com/releases/2026/02/260224023218.htm https://www.sciencedaily.com/releases/2026/02/260221000328.htm Flea and tick medications trusted by pet owners worldwide may have an unexpected environmental cost. Scientists found that active ingredients from isoxazoline treatments pass into pet feces, exposing dung-feeding insects to toxic chemicals. These insects are essential for nutrient cycling and soil health. The findings suggest everyday pet treatments could ripple through ecosystems in surprising ways. Sun, 22 Feb 2026 01:24:32 EST https://www.sciencedaily.com/releases/2026/02/260221000328.htm https://www.sciencedaily.com/releases/2026/02/260211073016.htm Avian malaria is spreading across Hawaiʻi in a way scientists didn’t fully grasp until now: nearly every forest bird species can help keep the disease alive. Researchers found the parasite at 63 of 64 sites statewide, revealing that both native honeycreepers and introduced birds can quietly pass the infection to mosquitoes—even when carrying only tiny amounts of it. Because infected birds can remain contagious for months or even years, transmission keeps simmering almost everywhere mosquitoes exist. Wed, 11 Feb 2026 08:04:23 EST https://www.sciencedaily.com/releases/2026/02/260211073016.htm https://www.sciencedaily.com/releases/2026/02/260210040619.htm Your cat’s purr may say more about who they are than their meow ever could. Scientists discovered that purrs are stable and uniquely identifiable, while meows change dramatically depending on context. Domestic cats, in particular, have evolved highly flexible meows as a way to communicate with humans. The purr, meanwhile, stays constant—making it a reliable marker of individual identity. Wed, 11 Feb 2026 03:56:29 EST https://www.sciencedaily.com/releases/2026/02/260210040619.htm https://www.sciencedaily.com/releases/2026/02/260207232246.htm Pumas returning to Patagonia have begun hunting mainland penguins that evolved without land predators. Scientists estimate that more than 7,000 adult penguins were killed in just four years, many of them left uneaten. While the losses are dramatic, models show that pumas alone are unlikely to wipe out the colony. Greater dangers come from poor breeding and low survival among young penguins. Sun, 08 Feb 2026 00:05:44 EST https://www.sciencedaily.com/releases/2026/02/260207232246.htm https://www.sciencedaily.com/releases/2025/11/251128050512.htm Researchers have finally assigned a strange 3.4-million-year-old foot to Australopithecus deyiremeda, confirming that Lucy’s species wasn’t alone in ancient Ethiopia. This hominin had an opposable big toe for climbing but still walked upright in a distinct style. Isotope tests show it ate different foods from A. afarensis, revealing clear ecological separation. These insights help explain how multiple early human species co-existed without wiping each other out. Fri, 28 Nov 2025 09:48:15 EST https://www.sciencedaily.com/releases/2025/11/251128050512.htm https://www.sciencedaily.com/releases/2025/11/251122044327.htm Scientists have uncovered a surprising second type of lion roar, using AI to decode vocal signatures with remarkable precision. This breakthrough sheds new light on how lions communicate and offers a powerful new tool for conservationists racing to protect shrinking populations. Sat, 22 Nov 2025 04:43:27 EST https://www.sciencedaily.com/releases/2025/11/251122044327.htm https://www.sciencedaily.com/releases/2025/11/251121090735.htm Migratory birds that fill North American forests with spring songs depend on Central America’s Five Great Forests far more than most people realize. New research shows these tropical strongholds shelter enormous shares of species like Wood Thrushes, Cerulean Warblers, and Golden-winged Warblers—many of which are rapidly declining. Yet these forests are disappearing at an alarming pace due to illegal cattle ranching, placing both birds and local communities at risk. Sat, 22 Nov 2025 08:35:04 EST https://www.sciencedaily.com/releases/2025/11/251121090735.htm https://www.sciencedaily.com/releases/2025/11/251116105735.htm Across the planet, animals are increasingly suffering from chronic illnesses once seen only in humans. Cats, dogs, cows, and even marine life are facing rising rates of cancer, diabetes, arthritis, and obesity — diseases tied to the same factors affecting people: genetics, pollution, poor nutrition, and stress. A new study led by scientists at the Agricultural University of Athens proposes a unified model linking these conditions across species. Mon, 17 Nov 2025 03:21:37 EST https://www.sciencedaily.com/releases/2025/11/251116105735.htm https://www.sciencedaily.com/releases/2025/11/251104094154.htm Cockroach infestations don’t just bring creepy crawlers, they fill homes with allergens and bacterial toxins that can trigger asthma and allergies. NC State researchers found that larger infestations meant higher toxin levels, especially from female roaches. When extermination eliminated the pests, both allergens and endotoxins plummeted. The findings highlight how pest control is vital for cleaner, healthier air indoors. Tue, 04 Nov 2025 23:39:46 EST https://www.sciencedaily.com/releases/2025/11/251104094154.htm https://www.sciencedaily.com/releases/2025/11/251102205001.htm UC Davis scientists uncovered Aptostichus ramirezae, a new trapdoor spider species living under California’s dunes. Genetic analysis revealed it was distinct from its close relative, Aptostichus simus. The species was named after pioneering arachnologist Martina Ramirez. Researchers warn that shrinking coastal habitats could threaten both species’ survival. Sun, 02 Nov 2025 21:28:59 EST https://www.sciencedaily.com/releases/2025/11/251102205001.htm https://www.sciencedaily.com/releases/2025/11/251102011141.htm The debate over Nanotyrannus’ identity is finally over. A remarkably preserved fossil proves it was a mature species, not a teenage T. rex. This discovery rewrites how scientists understand tyrannosaur evolution and Cretaceous predator diversity. For the first time, T. rex must share its throne with a smaller, faster rival. Sun, 02 Nov 2025 03:26:27 EST https://www.sciencedaily.com/releases/2025/11/251102011141.htm https://www.sciencedaily.com/releases/2025/11/251101000353.htm Fringe-lipped bats from Panama hunt like miniature lions, using a “hang-and-wait” strategy to capture large, energy-rich prey. High-tech biologging revealed they spend most of their time conserving energy and strike with remarkable accuracy. With success rates around 50%, they outperform even apex predators like lions and polar bears. Older bats become even more efficient, showing that experience sharpens their deadly precision. Sat, 01 Nov 2025 02:10:54 EDT https://www.sciencedaily.com/releases/2025/11/251101000353.htm https://www.sciencedaily.com/releases/2025/10/251027023751.htm Extinction rates are not spiraling upward as many believe, according to a large-scale study analyzing 500 years of data. Researchers found that species losses peaked about a century ago and have decreased since, with different drivers shaping past and present threats. Whereas invasive species once caused most island extinctions, habitat destruction now looms largest on continents. Mon, 27 Oct 2025 08:32:40 EDT https://www.sciencedaily.com/releases/2025/10/251027023751.htm https://www.sciencedaily.com/releases/2025/10/251024041828.htm Scientists have unveiled Khankhuuluu, a new Mongolian dinosaur species that predates and closely resembles early Tyrannosaurs. With its long snout, small horns, and lean build, it represents a transitional form between swift mid-sized predators and giant apex hunters like T. rex. The find also suggests that large Tyrannosaurs first evolved in North America following an ancient migration from Asia. Fri, 24 Oct 2025 10:01:07 EDT https://www.sciencedaily.com/releases/2025/10/251024041828.htm https://www.sciencedaily.com/releases/2025/09/250925025310.htm Shark experts tested four innovative wetsuit materials to measure how well they reduce shark-bite injuries. The results show they can lessen major trauma, blood loss, and even save lives when compared to standard neoprene. While not a perfect shield, these suits represent a leap forward in personal protection. Thu, 25 Sep 2025 02:53:10 EDT https://www.sciencedaily.com/releases/2025/09/250925025310.htm https://www.sciencedaily.com/releases/2025/09/250923021207.htm Researchers have shown that stress and retrovirus levels are tightly linked to disease in koalas. High KoRV loads make koalas more vulnerable to chlamydia, worsening epidemics in stressed populations. Protecting habitats, careful breeding, and antiviral trials are now being pursued to give koalas a fighting chance at survival. Tue, 23 Sep 2025 21:56:19 EDT https://www.sciencedaily.com/releases/2025/09/250923021207.htm https://www.sciencedaily.com/releases/2025/09/250921090841.htm In Jezero Crater’s Bright Angel formation, Perseverance has found rocks rich in organic molecules and minerals linked to microbial metabolism. Their arrangement hints at redox reactions that resemble Earth’s life-driven chemistry. While not proof of Martian life, the findings qualify as “potential biosignatures” and make the stored sample a top candidate for return to Earth. Sun, 21 Sep 2025 11:41:14 EDT https://www.sciencedaily.com/releases/2025/09/250921090841.htm https://www.sciencedaily.com/releases/2025/09/250908175502.htm Orangutans, humans’ close evolutionary relatives, have developed remarkable strategies to survive in the unpredictable rainforests of Borneo. A Rutgers-led study reveals that these apes balance protein intake and adjust their activity to match food availability, avoiding obesity and metabolic disease. Unlike humans, who often overeat processed foods without adjusting energy use, orangutans switch between fruits, leaves, and even stored body fat depending on the season. Their ability to maintain protein levels and conserve energy during scarcity offers insights not only into their survival but also into healthier dietary habits for people. Tue, 09 Sep 2025 01:47:10 EDT https://www.sciencedaily.com/releases/2025/09/250908175502.htm https://www.sciencedaily.com/releases/2025/08/250828002409.htm Seventy million years ago, southern Patagonia was home to dinosaurs, turtles, and mammals—but also to a fierce crocodile-like predator. A newly discovered fossil, astonishingly well-preserved, reveals Kostensuchus atrox, a powerful 3.5-meter-long apex predator with crushing jaws and sharp teeth capable of devouring medium-sized dinosaurs. As one of the largest hunters of its time and the first of its kind found in the Chorrillo Formation, this find offers rare insight into the prehistoric ecosystem at the close of the Cretaceous. Fri, 29 Aug 2025 10:26:42 EDT https://www.sciencedaily.com/releases/2025/08/250828002409.htm https://www.sciencedaily.com/releases/2025/08/250813083611.htm Cats can naturally develop dementia with brain changes strikingly similar to Alzheimer’s disease in humans, including toxic amyloid-beta buildup and loss of synapses. A new study shows these similarities could make cats valuable natural models for research, potentially leading to treatments that benefit both species. The research also revealed that brain support cells may contribute to synapse loss, and findings could help owners recognize and manage dementia symptoms in aging pets. Thu, 14 Aug 2025 02:23:20 EDT https://www.sciencedaily.com/releases/2025/08/250813083611.htm https://www.sciencedaily.com/releases/2025/08/250806094118.htm A prehistoric predator changed its diet and body size during a major warming event 56 million years ago, revealing how climate change can reshape animal behavior, food chains, and survival strategies. Wed, 06 Aug 2025 23:53:38 EDT https://www.sciencedaily.com/releases/2025/08/250806094118.htm https://www.sciencedaily.com/releases/2025/08/250803233059.htm An intriguing new study reveals that over 80% of parasites found in the ancient poo of New Zealand’s endangered kākāpō have vanished, even though the bird itself is still hanging on. Researchers discovered this dramatic parasite decline by analyzing droppings dating back 1,500 years, uncovering an unexpected wave of coextinctions that occurred long before recent conservation efforts began. These hidden losses suggest that as we fight to save charismatic species, we may be silently erasing whole communities of organisms that play crucial, yet misunderstood, ecological roles. Mon, 04 Aug 2025 00:16:42 EDT https://www.sciencedaily.com/releases/2025/08/250803233059.htm https://www.sciencedaily.com/releases/2025/07/250716000849.htm After devastating wildfires scorched the Brazilian Pantanal, an unexpected phenomenon unfolded—more jaguars began arriving at a remote wetland already known for having the densest jaguar population on Earth. Scientists discovered that not only did the local jaguars survive, but their numbers swelled as migrants sought refuge. This unique ecosystem, where jaguars feast mainly on fish and caimans and tolerate each other’s presence unusually well, proved remarkably resilient. Researchers found that this floodplain may serve as a natural climate sanctuary, highlighting its crucial role in a changing world. Wed, 16 Jul 2025 23:30:36 EDT https://www.sciencedaily.com/releases/2025/07/250716000849.htm https://www.sciencedaily.com/releases/2025/06/250626081533.htm Cats overwhelmingly choose to sleep on their left side, a habit researchers say could be tied to survival. This sleep position activates the brain’s right hemisphere upon waking, perfect for detecting danger and reacting swiftly. Left-side snoozing may be more than a preference; it might be evolution’s secret trick. Thu, 26 Jun 2025 14:51:11 EDT https://www.sciencedaily.com/releases/2025/06/250626081533.htm https://www.sciencedaily.com/releases/2025/06/250624044319.htm Two Ice Age wolf pups once thought to be early dogs have been identified as wild wolves, thanks to detailed DNA and chemical analysis. Surprisingly, their last meals included woolly rhinoceros meat—an unusually large prey item—hinting that ancient wolves might have been bigger than today’s. Their well-preserved bodies also shed light on wolf pack behavior and Ice Age environments. Tue, 24 Jun 2025 09:24:09 EDT https://www.sciencedaily.com/releases/2025/06/250624044319.htm https://www.sciencedaily.com/releases/2025/06/250603172914.htm UC Davis researchers found that video telehealth visits help cat owners better care for arthritic cats without the stress of clinic visits. Owners appreciated personalized tips to improve their cat s comfort at home, and most said they'd pay for this convenient service. It s a game-changer for supporting cats with chronic conditions in a low-stress, familiar setting. Tue, 03 Jun 2025 17:29:14 EDT https://www.sciencedaily.com/releases/2025/06/250603172914.htm https://www.sciencedaily.com/releases/2025/05/250529124402.htm Whether you are lucky enough to have a cat companion or must merely live this experience vicariously through cat videos, Felis catus is a familiar and comforting presence in our daily lives. Unlike most other feline species, cats exhibit sociality, can live in groups, and communicate both with other cats and humans, which is why they have been humans' trusted accomplices for millennia. Despite this intimacy, there is still much that we don't know about our feline friends. Thu, 29 May 2025 12:44:02 EDT https://www.sciencedaily.com/releases/2025/05/250529124402.htm https://www.sciencedaily.com/releases/2025/05/250528132118.htm Parasitic worms that infect humans are not interbreeding with those that infect cattle as previously thought. This is good news for when it comes to controlling schistosomiasis, a disease caused by these worms that affects more than 200 million people globally. Wed, 28 May 2025 13:21:18 EDT https://www.sciencedaily.com/releases/2025/05/250528132118.htm https://www.sciencedaily.com/releases/2025/05/250528131557.htm Many bat species native to Germany, such as the Leisler's bat, are forest specialists. However, as it is becoming increasingly hard for them to find tree hollows in forest plantations, so they are moving to settlements instead. Using high-resolution GPS data from bats, a team led by scientists has analyzed in greater detail than ever before how Leisler's bats use their habitats, which tree species they look for when searching a roost, and which forest types they avoid. They found that these bats increasingly seek refuge in old trees in urban areas and in old buildings such as churches. Wed, 28 May 2025 13:15:57 EDT https://www.sciencedaily.com/releases/2025/05/250528131557.htm https://www.sciencedaily.com/releases/2025/05/250523120439.htm A new study shows that monitoring and managing select bird species can provide benefits for other species within specific regions. Fri, 23 May 2025 12:04:39 EDT https://www.sciencedaily.com/releases/2025/05/250523120439.htm https://www.sciencedaily.com/releases/2025/05/250522125530.htm New research examining 11,700 years of bowhead whale persistence throughout the Arctic projects that sea ice loss due to climate change will cause their habitat to severely contract by up to 75 per cent. Thu, 22 May 2025 12:55:30 EDT https://www.sciencedaily.com/releases/2025/05/250522125530.htm https://www.sciencedaily.com/releases/2025/05/250520121549.htm Often feared as dangerous, puff adders may be unsung agricultural heroes—capable of devouring rodents at extraordinary rates just when farmers need it most. By harnessing their natural abundance, these snakes could protect crops, cut losses, and reshape the way we think about pest control. Tue, 20 May 2025 12:15:49 EDT https://www.sciencedaily.com/releases/2025/05/250520121549.htm https://www.sciencedaily.com/releases/2025/05/250516134412.htm Researchers have discovered how a parasite that causes malaria when transmitted through a mosquito bite can hide from the body's immune system, sometimes for years. It turns out that the parasite, Plasmodium falciparum, can shut down a key set of genes, rendering itself 'immunologically invisible.' Fri, 16 May 2025 13:44:12 EDT https://www.sciencedaily.com/releases/2025/05/250516134412.htm https://www.sciencedaily.com/releases/2025/05/250516134254.htm Researchers have found that wild orangutans vocalize with a layered complexity previously thought to be unique to human communication, suggesting a much older evolutionary origin. Fri, 16 May 2025 13:42:54 EDT https://www.sciencedaily.com/releases/2025/05/250516134254.htm https://www.sciencedaily.com/releases/2025/05/250515131453.htm Many an orange cat-affiliated human will vouch for their cat's, let's say, specialness. But now scientists have confirmed that there is, in fact, something unique about ginger-hued domestic felines. In a new study, researchers have discovered the long-posited but elusive genetic mutation that makes orange cats orange -- and it appears to occur in no other mammal. Thu, 15 May 2025 13:14:53 EDT https://www.sciencedaily.com/releases/2025/05/250515131453.htm https://www.sciencedaily.com/releases/2025/05/250507130336.htm Parasites are crucial indicators of ecosystem health, and their absence can signal trouble. Once pristine, Florida's Indian River Lagoon (IRL) now faces pollution and algal blooms that have damaged essential habitats like seagrass beds. New research finds parasite levels in the IRL are significantly lower than in comparable ecosystems worldwide -- 11% lower overall and 17% lower for larval parasites requiring multiple hosts. This sharp decline suggests a disrupted food web likely caused by pollution and habitat degradation, and a less resilient and more vulnerable ecosystem. Wed, 07 May 2025 13:03:36 EDT https://www.sciencedaily.com/releases/2025/05/250507130336.htm https://www.sciencedaily.com/releases/2025/05/250505204921.htm A new study links grazing halo patterns in coral reefs, as well as those in other patchy habitats, to the spatial patterns of the shelter habitat itself. The researchers found that grazing halos are distinct when the coral is clustered but merge into each other when the coral is dispersed. Mon, 05 May 2025 20:49:21 EDT https://www.sciencedaily.com/releases/2025/05/250505204921.htm https://www.sciencedaily.com/releases/2025/05/250501122105.htm Animal research on biomusicality, which looks at whether different species are capable of behaving in ways that show they recognize aspects of music, including rhythm and beat, remains a tantalizing field at the intersection of biology and psychology. Now, the highly trained California sea lion who achieved global fame for her ability to bob her head to a beat is finally back: starring in a new study that shows her rhythm is just as precise -- if not better -- than humans. Thu, 01 May 2025 12:21:05 EDT https://www.sciencedaily.com/releases/2025/05/250501122105.htm https://www.sciencedaily.com/releases/2025/04/250430141832.htm In 2013, a sea star wasting syndrome decimated populations of Pisaster along the west coast of North America and along the Monterey Peninsula in California, where this study was conducted. The orange and purple stars have a hungry appetite for mussels in the rocky intertidal. Without the voracious sea stars lurking around, mussel populations exploded, expanding in cover from around five percent to more than 18 percent within three years. In the wake of the sea star die-off, mussels became a major prey surplus for sea otters, revealing a surprising link between the adjacent rocky intertidal and kelp forest ecosystems. The new research into the phenomenon shows how the loss of a keystone predator (Pisaster) in one ecosystem can impart changes to another (sea otters), linking ecosystems. Wed, 30 Apr 2025 14:18:32 EDT https://www.sciencedaily.com/releases/2025/04/250430141832.htm https://www.sciencedaily.com/releases/2025/04/250429195320.htm Imagine a crocodile built like a greyhound -- that's a sebecid. Standing tall, with some species reaching 20 feet in length, they dominated South American landscapes after the extinction of dinosaurs until about 11 million years ago. Or at least, that's what paleontologists thought. A new study shows the Caribbean Islands were a refuge for the last sebecid populations at least 5 million years after they went extinct everywhere else. Tue, 29 Apr 2025 19:53:20 EDT https://www.sciencedaily.com/releases/2025/04/250429195320.htm https://www.sciencedaily.com/releases/2025/04/250428220441.htm Through intensive breeding, humans have pushed breeds such as pug dogs and Persian cats to evolve with very similar skulls and 'smushed' faces, so they're more similar to each other than they are to other dogs or cats. Mon, 28 Apr 2025 22:04:41 EDT https://www.sciencedaily.com/releases/2025/04/250428220441.htm https://www.sciencedaily.com/releases/2025/04/250423164221.htm Bite marks found on a skeleton discovered in a Roman cemetery in York have revealed the first archaeological evidence of gladiatorial combat between a human and a lion. Wed, 23 Apr 2025 16:42:21 EDT https://www.sciencedaily.com/releases/2025/04/250423164221.htm https://www.sciencedaily.com/releases/2025/04/250422131337.htm At the heart of the Amazon researchers are investigating a mysterious parasite which is devastating fish farms around the world. Tue, 22 Apr 2025 13:13:37 EDT https://www.sciencedaily.com/releases/2025/04/250422131337.htm https://www.sciencedaily.com/releases/2025/04/250421163507.htm An international collaboration has published groundbreaking research, shedding light on the most significant increase in complexity in the history of life's evolution on Earth: the origin of the eukaryotic cell. Mon, 21 Apr 2025 16:35:07 EDT https://www.sciencedaily.com/releases/2025/04/250421163507.htm https://www.sciencedaily.com/releases/2025/04/250416135913.htm Researchers examined teeth and skulls of 99 extinct crocodylomorph species and 20 living crocodylian species to reconstruct their dietary ecology and identify characteristics that helped some groups persist through two mass extinctions. They discovered that one secret tocrocodylian longevity is their remarkably flexible lifestyles, both in what they eat and the habitat in which they get it. Wed, 16 Apr 2025 13:59:13 EDT https://www.sciencedaily.com/releases/2025/04/250416135913.htm https://www.sciencedaily.com/releases/2025/04/250414124332.htm A new study has revealed that a special group of cells in the intestines tamp down the immune responses caused by exposure to food proteins. Called 'tolerogenic dendritic cells,' these cells enable food to pass through the body without triggering an immune reaction, unless they malfunction to cause allergies. Mon, 14 Apr 2025 12:43:32 EDT https://www.sciencedaily.com/releases/2025/04/250414124332.htm https://www.sciencedaily.com/releases/2025/04/250403143842.htm Researchers found that a small population of immune cells in the mouse intestine prevents allergic responses to food, suggesting that targeting such cells therapeutically could potentially lead to a new treatment for allergies. Thu, 03 Apr 2025 14:38:42 EDT https://www.sciencedaily.com/releases/2025/04/250403143842.htm https://www.sciencedaily.com/releases/2025/04/250402142420.htm In a small study of eight cats at early stages of pregnancy, researchers detected 19 different kinds of microplastic particles in fetuses from two cats and in the placentas of three cats. Wed, 02 Apr 2025 14:24:20 EDT https://www.sciencedaily.com/releases/2025/04/250402142420.htm https://www.sciencedaily.com/releases/2025/03/250328112544.htm Researchers show that the immune system can recognize and control the latent stage of the parasite Toxoplasma gondii, a finding that can inform the study of latency in other infections of the nervous system. Fri, 28 Mar 2025 11:25:44 EDT https://www.sciencedaily.com/releases/2025/03/250328112544.htm https://www.sciencedaily.com/releases/2025/03/250320144639.htm A new study documents Putah Creek-origin salmon, meaning some salmon returning to the restored creek in the fall to spawn were actually born there. The study carries broader implications for other degraded streams and wild salmon runs. Thu, 20 Mar 2025 14:46:39 EDT https://www.sciencedaily.com/releases/2025/03/250320144639.htm https://www.sciencedaily.com/releases/2025/03/250318140716.htm A major review of over 67,000 animal species has found that while the natural world continues to face a biodiversity crisis, targeted conservation efforts are helping bring many species back from the brink of extinction. Tue, 18 Mar 2025 14:07:16 EDT https://www.sciencedaily.com/releases/2025/03/250318140716.htm https://www.sciencedaily.com/releases/2025/03/250317164454.htm A new study has found that fortified enclosures also benefit nearby livestock keepers by preventing carnivore attacks. Mon, 17 Mar 2025 16:44:54 EDT https://www.sciencedaily.com/releases/2025/03/250317164454.htm https://www.sciencedaily.com/releases/2025/03/250313130552.htm Social media can help scientists track animal species as they relocate in response to climate change, new research shows. Thu, 13 Mar 2025 13:05:52 EDT https://www.sciencedaily.com/releases/2025/03/250313130552.htm