Articles tagged with Animal Research
The study found that oxytocin promotes consoling behavior in prairie voles, characterized by calming contact directed at a distressed individual. This discovery has significant implications for understanding and treating psychiatric disorders like autism spectrum disorder and schizophrenia.
A new species of leech from Australia has been named Chtonobdella tanae in recognition of best-selling author Amy Tan. Using computed tomography (CT) scanning, researchers were able to describe the internal anatomy of a soft-bodied animal for the first time.
Research from the University of East Anglia found that genetically modified oilseed crops can efficiently accumulate key health-beneficial omega-3 fatty acid EPA in mice. The study shows comparable benefits for liver health to eating oily fish, suggesting a potential alternative source to address the global dietary deficit.
Research found that prairie voles living in close quarters were less stressed out and had lower levels of the stress hormone corticosterone. This is surprising as most studies link increased crowding with higher stress.
Scientists found that larger animals require more sticking power, but have less body surface area available to cover with sticky footpads. Geckos' unique footpads set a size limit for adhesive-based climbing strategies, making it impossible for humans to climb like Spiderman.
Researchers found that chimpanzees with more frequent social interactions had more diverse gut microbiomes. The study suggests that social networks play a crucial role in maintaining healthy gut microbial diversity, a finding with potential implications for human health.
Researchers identified the NLRP3 inflammasome's role in activating Interleukin 1 beta, triggering inflammation and BPD development. Testing FDA-approved drugs showed promise in reducing lung damage.
The study reveals that citizen science has become a significant force in various scientific disciplines. Citizen scientists contribute millions of observations to research projects, with notable success in biology, ecology, and astronomy. However, the quality of these contributions is often not acknowledged by researchers.
A study by James Cook University scientists found that lizards in environmentally variable areas can tolerate more fluctuations, leading to wider ranges. Climate change predictions are met with evidence of species adapting to extreme weather events.
A new IU study confirms the existence of independent working memory systems in animals, which could inform new pre-clinical research models for Alzheimer's disease treatment. The results show that rats possess two separate memory resources, allowing them to recall more information across multiple categories.
Researchers discovered that discontinuous gas-exchange cycles in ground beetles minimize tracheal system infestation by pathogens. This finding sheds light on the insects' evolutionary success and potential defense mechanisms.
Scientists report a new detection method for identifying aromatase inhibitor use in horses, increasing chances of catching cheaters by 2-2.5 times longer than conventional methods.
Researchers discovered a new type of antidepressant that acts quickly in mice, unlike current treatments which take weeks or months. The compound CGP3466B targets a new network of proteins and has fewer side effects than existing medications.
A new study finds that traumatic brain injury induces mental impairments using mechanisms linked with Alzheimer's disease, specifically the toxic form of tau protein. The research suggests that TBI may share a common mechanism with neurodegenerative diseases, increasing the risk for dementia and other neurological disorders.
Female burying beetles prefer smaller male partners due to reduced competition and potential for squabbles. Despite being less successful as parents, small males still breed more often in faithful pairs than larger males.
Researchers identified an ancient protein mutation that enabled the evolution of a protein necessary for multicellularity in animals. The study, published in eLife, describes a molecular mechanism involved in the origin of complex life and establishes a paradigm for research in evolutionary cell biology.
Studies show that inducing a second stroke nearby in the brains of mice can help them regain motor function to pre-stroke efficiency. This suggests that the optimal recovery window after a stroke may not be permanently closed and can reopen under certain conditions.
Researchers developed two monitoring indicators for hunting levels of rainforest mammals and birds, adapting fisheries monitoring methods. The study found that hunters may be shifting to smaller species over time and increasing pressure on bird and mammal populations.
Researchers at Stanford University School of Medicine found that trimming the nails of laboratory mice can cure a common and life-threatening skin disease. The technique saved 93% of mice from ulcerative dermatitis, a condition that caused deep ulcers and led to animal euthanasia.
Researchers found pigment cells move and multiply randomly during early development, contradicting previous theories on piebald patterns. The mathematical model can now be used to understand conditions linked to early cell positioning.
Studies have shown that oxygen levels in the deep ocean were at least 4% of modern concentrations 1.4 billion years ago, indicating that animals could exist and evolve with this amount of oxygen. Despite this, animals did not appear on Earth until about 600 million years ago.
Scientists recorded 3-D footage of neural activity in the nematode Caenorhabditis elegans, a worm species with a nervous system containing just 302 neurons. The study revealed surprising correlations between neural activity and behavior, including turning movements.
Researchers found that stroked calves gained weight faster, weighed more at 90 days, and had lower avoidance distances, indicating a stronger human-animal relationship. Disbudding without anesthesia disrupted this bond.
Researchers find that extinction of fruit-eating animals like primates and tapirs disrupts seed dispersal, leading to a decline in heavy-wooded trees and reduced carbon storage. This loss affects the ecosystem's ability to counter climate change.
A new cell culture technique called VOGIM allows the formation of tumor blood vessels and their interaction with immune cells to be observed in real-time. This enables the study of tumor growth, cell death, and the influence of medications on these developments without live animal testing.
Humpback whales' diets reflect surrounding environmental changes, while harbor porpoises recolonize San Francisco Bay and sea otters help restore ecosystem health. New research highlights the West Coast's diverse marine mammals and their responses to climate change.
Researchers at Case Western Reserve University found that habitat characteristics explain differences in immune defense traits of frogs between populations. Microbiome differences and altered natural peptide secretions may alter the amphibian's immune defense capabilities. The study suggests that land use changes can influence animal t...
A recent study published in Nature finds a sharp decline in the association of plant and animal species over the last 6,000 years. This shift is attributed to human population growth and agricultural practices, which have led to changes in ecological conditions.
Researchers from California and Saudi Arabia found that nearly 40% of red palm weevils flew more than 10 kilometers, with some reaching distances of up to 50 kilometers in just 24 hours. The study provides valuable insights into the flight capabilities of these pests.
Research by James Cook University scientists found a ketogenic diet reduces animal behaviors resembling schizophrenia, potentially providing an alternative energy source and circumventing cellular energy pathways. The diet has also been shown to lead to weight loss and lower blood glucose levels in mice.
A UK-led study found that seal tags can improve ocean forecasts by providing valuable temperature and salinity recordings in regions rarely sampled. This could lead to better weather predictions and improved marine conditions for industries such as shipping and offshore oil and gas operations.
A nearly complete skeleton of a well-preserved early carnivorous mammal, Galecyon, has shed light on the ecology and evolutionary relationships of hyaenodontids. The fossil, dating back to the Eocene Epoch, suggests that these ancient animals were adaptable ground-dwelling creatures, unlike their tree-climbing or runner relatives.
Research at the Society of Marine Mammalogy's Biennial Conference highlights how climate change is affecting marine mammals globally, introducing new interactions and shifting habitats. Marine mammals, especially in the Arctic, serve as sentinel species reflecting environmental changes.
A study found that chronic exposure to domoic acid causes significant deficits in spatial memory and brain damage in California sea lions. The research documented impaired performance on short- and long-term spatial memory tasks and linked the extent of hippocampal damage to specific behavioral impairments.
Researchers analyzed brain scans and behavioral tests of stranded sea lions to find correlations between brain damage and specific behavioral impairments. They discovered damage to the hippocampus, a key region for memory processes, and effects on interactions with other brain structures.
Mexican authorities instituted an emergency ban on gillnetting to save the critically endangered vaquita, with scientists reporting a hopeful model for sustainable fishing coexistence. Researchers also presented studies on declining polar bears and potential methods to reduce bycatch in non-mechanized fisheries.
A new study found that modern birds arose in what is now South America around 90 million years ago. The research suggests that birds survived the Cretaceous-Paleogene extinction event and then diversified during periods of global cooling, with diversification rates increasing as the climate cooled.
Research finds nearly 4% annual decline in Northern spotted owl populations from 1985 to 2013. Barred owl invasion is a major factor, but habitat loss and climate also contribute to population declines, with some areas experiencing up to 77% reduction in Washington.
Scientists developed implantable probes with tiny LEDs that can control and record individual neurons, shedding light on neural communication. The new technology could lead to breakthroughs in understanding and treating neurological diseases like Alzheimer's, which affects hundreds of millions worldwide.
Research reveals that genetically predisposed timid swans are more likely to inhabit non-urban areas, while bolder swans colonize cities. The study found a significant association between specific DRD4 gene variants and wariness levels.
A study by Aarhus University reveals that breeding confident mink can improve fur quality. The research found a strong correlation between confidence and pelt quality, suggesting that selecting for confident mink can lead to better welfare and fewer stress issues during handling.
Researchers identify NEK7 enzyme's switch-like activity in immunity, leading to potential new treatments for metabolic disorders and inflammatory conditions. The study provides insights into the inflammasome pathway and its connection to cancer.
A new gene therapy approach has successfully reduced the number of epileptic seizures in test animals, mimicking human temporal lobe epilepsy. The treatment involves delivering genes for neuropeptide Y and its receptors into the brain, resulting in a significant reduction in seizures for up to 80% of the animals.
Researchers at Vanderbilt University Medical Center are conducting a proof of concept experiment using intraspinal microstimulation technology to restore complex body movements in paralyzed patients. The study aims to identify the optimal sweet spot for stimulation along the spinal cord, which has shown promise in animal studies.
Scientists have confirmed that blood vessel-like structures found in an 80 million-year-old hadrosaur fossil are original to the animal, not biofilm or contaminants. The discovery provides insight into how proteins can modify and change over millions of years.
A new study evaluates mechanisms driving diversity in bone function, providing insight into the evolution of tetrapods and their transition to land. The tiger salamander's unique anatomy and ecology make it an ideal organism for studying this process.
A study published in Biology Letters found that the eye views of ponies and other mammals are surprisingly similar to those of humans. Researchers used touchscreens to test visual perception in three ponies, comparing their results with studies on dolphins and chimps.
Researchers use CT scans and 3D models to study a 90-million-year-old skull, revealing that snakes evolved to live in burrows and lost their limbs as a result. The discovery confirms Dinilysia patagonica as the largest burrowing snake ever known.
A recent study published in Scientific Reports reveals that sperm utilize proteins from the visual system, known as opsins, to detect temperature differences in the fallopian tube. This allows them to navigate and orient towards the warmer egg location, ensuring successful fertilization.
A team of scientists reconstructed wildlife populations across Africa to better understand how they shaped the world. They focused on large mammal herbivores and found that dry areas had fewer animals, while wetter savannas were dominated by elephants and fire.
Researchers developed a novel isothermal amplification method using gold nanoparticles and magnetic microbeads to detect DNA sequences characteristic of Leishmania infantum kinetoplast. The approach exhibits good reproducibility and sensitivity, outperforming other point-of-care tests.
Researchers at Oxford University found that faster pigeons tend to become flock leaders, learning navigation skills more effectively. In a study of 40 homing pigeons tagged with GPS devices, the team discovered that leadership experience improved efficiency in faster birds.
Researchers discovered that Mipp1 protein helps fruit fly cells sprout 'fingers' to build the intricate network of the trachea. The protein's presence is crucial for cell migration and elongation, with too much or too little resulting in abnormal development.
A study published in PLOS ONE found that cichlid fish can accurately recognize individuals using facial color patterns, requiring longer viewing distances for unfamiliar faces than familiar ones. Fish demonstrated rapid discrimination between familiar and unfamiliar individuals, with recognition times under 0.5 seconds.
Scientists studied 12 incidents of starling drownings and found that on 10 occasions, more than 10 birds drowned. The team suggests that younger birds may be inexperienced in identifying water hazards, contributing to the phenomenon.
The corn snake genome has been sequenced for the first time, providing valuable insights into reptile evolution and genetic diversity. The study aims to understand how snakes lost their limbs and developed various skin colorations, shedding light on the evolutionary processes that shaped these animals.
Researchers discovered army ants form complex bridges without a lead ant, adapting to terrain and optimizing food collection. The collective computation allows them to balance cost and benefit, a phenomenon that could inform the development of swarm robots.
Research suggests that wild pumpkin and squash were initially used for non-food purposes, such as containers and tools, before humans discovered their edible value. The loss of megafauna allowed wild plants to grow in new environments, leading to the evolution of palatability.
A Michigan State University study found that too much FSH decreases a woman's chances of having a baby, reversing traditional thought on hormone use during IVF. The live birth rate decreased by as much as 15-20% with high FSH doses, regardless of age or treatment length.
A review reveals prevalent antimicrobial resistance in horse bacteria, particularly E. coli, with emerging multidrug resistance posing a huge challenge for society.