Articles tagged with Animal Science
A new study reveals how beluga whales in Alaska's Bristol Bay survive through a surprising strategy: they mate with multiple partners over several years. This polygynandrous system helps maintain genetic diversity despite the population's small size and isolation.
A new study quantifies the time spent in moderate to intense heat-related discomfort by South American beef cattle, finding they experience 280-2,800 hours of heat stress per year. Providing shade can reduce this impact by up to 85% and generate economic benefits.
In experiments, horses demonstrated a strong response to sweat from scared humans, exhibiting increased fear and avoidance behaviors. The study found that horses can smell human emotional odors, influencing their behavior and physiology
Researchers from Shedd Aquarium tracked queen conch movements to estimate the space needed to protect breeding populations. The study suggests establishing a 330-meter spatial buffer around breeding areas to help protect conch populations and serve as a practical tool for local management.
Researchers analyzed solitary mason bee gut metagenomes to understand how urban environments shape diet, microbiome stability, pathogen exposure, and antibiotic resistance. The study found that bees' gut ecosystems containing both bacteria and viruses are more resilient than bacteria-only communities.
A study on experimental microneedle painkiller patches in pigs has shown that the drug concentrations reached only about 2 micrograms per liter, which is 1,500 times less than the required effective dose. The patches work better on the neck than the ear and have shown safety and tolerability.
When their nest is disturbed, bumblebees respond by preparing to defend the nest, searching for the threat, warning potential intruders to stay away, and finally recovering from stress. They maintain heightened vigilance for around 4 minutes after the disturbance.
A recent study in a semi-captive facility in Lao PDR showed that male Asian elephants can coexist peacefully if introduced slowly. The research with 8 unrelated males demonstrated successful socialization without significant stress, providing new insights into elephant behavior and social interaction.
Research found that most people are poor at recognizing pain in horses, but those with more experience are better equipped to identify subtle cues. Higher levels of social anxiety also influenced pain recognition, particularly in humans, highlighting the need for education and training on equine welfare.
A new study reveals that four wild cat species in Guatemala's Maya Biosphere Reserve coexist without competitive exclusion by hunting in different vertical zones. Pumas primarily consume tree-dwelling prey, while jaguars and ocelots focus on ground-dwelling prey.
Researchers have developed a culture medium, 'AR medium,' that transforms canine iPS cells into functional heart muscle cells with contractions. This breakthrough could accelerate the development of regenerative medicine and genetic disease treatments for humans.
Researchers developed a wearable sensor to track thoroughbred horse movements and identify risk factors for catastrophic injury. The study found that horses with high risk scores were 44 times more likely to suffer fatal injuries, and implementing the technology could reduce fatal injury rates by nearly 20%.
Madagascar hissing cockroaches gather in groups to conserve water when the air is dry, a behavior that helps them retain moisture. This strategy, previously observed in small insects and larvae, may become more common as climate change alters humidity patterns.
Two pioneering studies explore consumer acceptance of vegan and alternative protein-based pet diets among dog and cat guardians worldwide. Overall, 43% and 51% of respondents would consider at least one type of more sustainable diet for their pets, with cultivated meat-based and vegan options gaining popularity.
Simple items like hay feeders and giant rubber activity balls can improve horse behavior and reduce health issues such as ulcers and fragile leg bones. Researchers found that stabled horses displayed increased movement and reduced frustration behaviors when provided with enrichment tools.
A recent study at UC Davis has shown that feeding cows red seaweed can dramatically cut the amount of methane produced, with a 60% reduction in emissions. The research identified specific microbes in the cow's gut that help reduce methane production, opening the door to engineering these microbes for a long-term solution.
A meta-analysis of scientific literature reveals that pathogens are the primary driver of mass mortality events in sea urchins, with 33% of events attributed to them. Storms and extreme temperatures also play a significant role, with 25% and 24% of events respectively.
A new study introduces a conceptual model for improving animal disease surveillance, highlighting the link between genetic predisposition and environmental exposures. The findings show that human-driven ecological change exacerbates chronic diseases in animals, such as obesity and cancer, with potential implications for human health.
Scientists suggest that managing pond conditions can tip the balance in favor of native species. Research found that longer hydroperiods, typically over 110 days, lead to larger and more stable populations.
Researchers Prof Axel Cleeremans, Prof Anil Seth, and Prof Liad Mudrik warn that advances in AI and neurotechnology are outpacing our understanding of consciousness. They emphasize the need for theory-driven research and innovative methods to advance consciousness science.
Researchers warn that advances in AI and neurotechnology are outpacing our understanding of consciousness, with potential serious ethical consequences. A better understanding of consciousness could have major implications for AI, prenatal policy, animal welfare, medicine, mental health, law, and emerging neurotechnologies.
Researchers discovered that Kangaroo Island dunnarts are partially arboreal and use pygmy-possum nest boxes for shelter. The finding highlights the importance of tree hollows in biodiversity conservation, as these creatures also seek refuge in eucalyptus trees.
New research from the Stowers Institute for Medical Research reveals planarian stem cells ignore their nearest neighbors and respond to signals further away in the body. This discovery may help explain the flatworm's extraordinary ability to regenerate and offer clues for developing new ways to replace or repair tissues in humans.
Researchers assessed the impact of reactivity in red brocket deer on training efficiency, finding that calm individuals can learn commands like 'Come'. In contrast, more restless individuals had difficulty learning and following instructions.
A global study found that introduced animal species have a greater impact on seed dispersal than native animal extinctions. Non-native mammals, such as pigs and rats, often replace native frugivorous birds, bats, and tortoises, affecting seed size and dispersal.
A study by PLOS reveals significant differences in gut microbiomes between captive and wild bears and pandas, particularly among giant pandas which have less diverse microbiomes than their wild counterparts.
Researchers have found a clear relationship between koala stress and increased risk of disease, including Chlamydia. The study suggests that high KoRV loads may be weakening the immune system, making koalas more susceptible to diseases such as blindness and infertility.
Scientists observed Hector's dolphins' subsurface behaviors, which may increase their risk of bycatch. The study sheds light on the conservation efforts for this critically endangered species.
A study by UAB and UdL found that horses can adapt their diet according to breed, environment, and use, reducing fuel loads and maintaining open landscapes. The research suggests that horses could be a valuable resource for fire prevention strategies in Mediterranean landscapes.
A new study using a validated survey has found that most people form an emotional attachment to their horses, similar to human-pet relationships. The Horse Attachment Questionnaire, adapted from a pet questionnaire, measured anxiety and avoidance in horse owners across 21 countries.
A new Virginia Tech study establishes a baseline for understanding dog behavior on a large scale, tracking trends in fear, attention, aggression, and trainability over four years. The research found that dogs are adaptable and not significantly affected by the COVID-19 pandemic, with some notable exceptions related to trainability.
A new Virginia Tech study analyzes four years of owner-reported data from over 47,000 dogs to establish a baseline for understanding dog behavior on a large scale. The research reveals that dogs are adaptable and shows no substantial changes in behavioral profiles despite the COVID-19 pandemic.
The Center for Food Animal Wellbeing's 11th annual symposium will focus on improving welfare outcomes in food animal production. The event, themed 'Boots on the Ground: Animal Welfare from the Veterinary Perspective,' will feature real-world veterinary insights and case studies on animal welfare.
A new study from Mizzou's College of Veterinary Medicine analyzed the effects of radioactive iodine therapy on thyroid cancer in dogs. The research found that tailoring the dose of radiation more precisely for each dog could improve outcomes and potentially lead to more targeted care.
Two ISTA Assistant Professors, Amelia Douglass and Ylva Götberg, have won 1.5 million euro ERC Starting Grants to explore how animals react to stress and the science behind binary-star stripping. Their research could lead to a better understanding of brain pathways disrupted in humans suffering from anxiety and stress.
A study found that most rodents have thumbnails instead of claws, which helps explain how they thrived in various environments. This discovery suggests that thumbnails provide more manual dexterity than long, sharp claws, enabling rodents to exploit high-energy resources like nuts.
A new reporting checklist introduces key methodological details to improve reproducibility and transparency in AI-based automated image analysis. The guidelines will support clear communication of methods and reduce cognitive bias, promoting the translation of AI tools into routine pathology workflows.
A new study found that river otters in Chesapeake Bay eat diverse prey and parasites, including flukes, dinoflagellates, and invasive fish. The researchers suggest that otters may be helping to clean up polluted environments by consuming parasite-infected animals.
A team at Osaka Metropolitan University used AI to analyze video footage of calves, detecting consistent temperature changes in their eyes and noses. The method enables non-invasive monitoring and improves the accuracy of body temperature assessments.
Researchers at UNSW Sydney discovered that leopard seal songs share structural similarities with human nursery rhymes, featuring predictable patterns and low entropy. The study found that male seals spend up to 13 hours a day singing in two-minute cycles, with each individual creating a unique sonic signature.
A six-month study tested precision fermented brewed chicken protein in dog kibble and found beneficial changes in fecal metabolites and gut microbiota. The protein was highly digestible, with no adverse effects on body weight or blood chemistry.
Four new tarantula species have been discovered in the Arabian Peninsula and Horn of Africa, featuring extraordinary long palps on males to aid in mating. The genus Satyrex boasts a range of distinct characteristics, including bright coloration and fossorial habits.
Wild great tits exhibit clear behaviors signalling 'divorce' long before the breeding season, according to a study by Oxford researchers. The team used data from the Wytham Woods great tit project and found that faithful birds visited feeding stations with their partners more often than those that went on to divorce.
Researchers tracked adult penguins during return trips from foraging in the ocean off Argentina. The penguins used curved paths shaped by tides to conserve energy and take advantage of feeding opportunities.
A study led by Virginia Tech found that volunteer dog-handler teams can effectively detect the elusive egg masses of the spotted lanternfly, an invasive insect damaging farms and forests across the eastern and central United States. With proper training, dog owners can turn their pets into powerful partners for conservation.
Cal Poly biological sciences Professor Emily Taylor is co-organizing the worldwide awareness week for snakes, highlighting over 3,500 globally significant species. The event promotes peaceful coexistence between humans and snakes, educating people about their importance in food webs and disease control.
A new international study reveals that Skagerrak likely serves as a nursery area for young Greenland sharks, contrary to common associations with Arctic waters. The research also confirms that newborn sharks are born in undisturbed deep-sea areas near the Mid-Atlantic Ridge, south of Iceland.
Scientists have developed a method to extract insect heart rates from video footage taken with digital cameras, preserving their natural behavior. The technique uses advanced signal processing and machine learning algorithms to analyze subtle body movements and detect accurate cardiac activity.
A study published in Nature Communications reveals that genetic diversity within groups of fruit flies improves their ability to evade predators and forage more efficiently. The research team identified a key gene, Ptp99A, that regulates group behavior and promotes survival performance.
A team led by L. Mahadevan found that young anacondas can execute a quick, one-off skating movement called the 'S-start' due to their physical attributes. This movement is similar to sidewinding and could inspire new robotic systems.
A new study found that hermit crabs with more sensory hairs on their claws recover faster from a startle response, indicating they are bolder. The research suggests a link between sensory ability and behavior, proposing a hypothesis called sensory investment syndrome.
A new study found that cows fed hemp byproduct for 28 days and then withdrawn from the diet for four weeks have undetectable levels of psychoactive THC in their milk. The findings could pave the way for the use of spent hemp biomass as a feed supplement for livestock, providing an economic value to hemp producers.
A high protein diet has been shown to improve birds' immune function and tolerance to infection by triggering the expression of immune-related genes. Birds fed a high protein diet were more resistant to infection and showed reduced symptoms compared to those fed a high lipid diet.
A team of researchers at Osaka Metropolitan University has successfully generated induced pluripotent stem cells from canine somatic cells and produced high-quality mesenchymal stem cells with high proliferation capacity. The study found that the highest quality MSCs were obtained from urine cells, offering a promising approach for reg...
A study found that six breeds are significantly more likely to get diarrhea than generic crossbreeds, while two breeds are less likely. Most dogs recover quickly from diarrhea, but around 38% require antibiotic treatment.
A recent study suggests that ladybird colors are produced by a combination of pigments and the physical properties of their wingcase. Researchers have discovered structural mechanisms underlying color production and pigment modulation in these insects.
A new study reveals rainbow trout endure intense 10-minute average pain during air asphyxia, with estimates ranging from 2 to 22 minutes. The study assesses the cost-effectiveness of interventions like electrical stunning, which could avert 60-1200 minutes of pain for every dollar of capital cost.
Researchers at Swansea University found that baboons walk in lines driven by social bonds rather than survival strategies. The team analysed travel progressions and showed that the order is consistent with who they're socially bonded with, with higher-ranking individuals often walking in the middle of the group.
Researchers found that video telehealth visits can help pet owners understand their cat's needs, increasing confidence in care. The study also suggested elevated food and water dishes, larger litter boxes, and additional steps to ease a cat's mobility issues.
A new study compares the genome sequence of bed bugs that live with humans and those that don't, finding that human-associated bed bugs recovered and increased in population size over time. The research suggests that humans may have inadvertently led to the emergence of modern bed bug pests.