Articles tagged with Animal Science
Scientists successfully fabricated micron-scale metal patterns on living tardigrades, enabling controlled movement through magnetic fields. This breakthrough opens doors for micro/nanofabrication of living organisms and bio-inorganic hybrid systems.
Wild animals studying seals' extreme environments could provide answers to pressing problems in human reproductive health. Seals' unique physiology offers insights into managing gestational diabetes and improving IVF success rates.
A 16-million-year-old fossil of a newly discovered extinct dirt ant species, Basiceros enana, has been found in Dominican amber. The Caribbean species is notably smaller than its modern relatives, offering direct evidence of their presence in the region before local extinction.
A comprehensive dataset captures individual and group behaviors across genetically diverse strains of fruit flies, shedding light on how genes shape animal behavior. The study's findings have potential implications for mental health conditions with known or suspected genetic components.
A new autonomous drone system, WildWing, provides ecologists with deeper insights into animal behavior in the wild by collecting dense animal behavioral data. The system has been shown to improve accuracy and reliability compared to human-driven attempts, enabling scientists to focus on scaling up research objectives.
Fiddler crabs use vibrational signals to communicate during courtship, and a new study reveals that signal features are influenced by the male's claw size. Researchers found that males with larger claws produce higher-energy signals, allowing females to assess their quality from afar.
A new framework helps scientists predict where and when animals will move in rapidly changing environments, addressing a pressing problem in the field of animal ecology. The study focuses on incorporating biological mechanisms into models to develop better predictions, which can inform effective wildlife management and policy.
A recent study published in The Wilson Journal of Ornithology reveals that Long-eared Owls have fluorescent pigments in their feathers that can only be seen under ultraviolet light. The amount of pigment varies within a population and is correlated with age, sex, and size, suggesting alternative functions beyond sexual signaling.
The International Society for Autism Research (INSAR) will hold its 24th Annual Meeting in Seattle, featuring 1600 posters, 28 oral sessions, and keynotes on topics such as daily challenges faced by the autism community and implementation science aimed at enhancing systems of care.
The Greater Mouse-Tailed Bat uses its long tail as a dynamic sensing tool to avoid obstacles and orient itself in complex environments, especially when vision and echolocation are limited. The study found that the bats' ability to navigate decreased significantly when their tail was numbed.
Researchers at UTA uncovered how the flowerpot snake repairs its DNA and prevents harmful mutations, shedding light on genetic repair mechanisms that could deepen our understanding of human gene evolution. The study also reveals surprising findings about reproductive strategies and immune-related genes in reptiles.
Researchers develop sustainable passive cooling solution using mycelium-bound composites, outperforming conventional insulation materials in tropical climates. The 'fungi tiles' mimic an elephant's ability to regulate heat from its skin, improving cooling rates and thermal conductivity.
A new electrochemical process has been developed to recover valuable industrial chemicals, such as volatile fatty acids, from animal waste. The system is 80% more energy efficient than traditional methods and can be used to produce a wide range of products, including cosmetics and pharmaceuticals.
A recent study published in the ICES Journal of Marine Science reveals that bigeye tuna, yellowfin tuna, and swordfish source between 50-60% of their diet from the twilight zone. This suggests that any changes to the twilight zone's food web could have profound implications for these fisheries.
Researchers found significant implications for water management and wildlife due to the decline in snowpack, affecting the Sainte-Anne River and its streamflow patterns. The study's findings align with historical records of droughts and heavy precipitation, highlighting the importance of protecting old growth forests.
The discovery of Lophiostroma leizunia extends the fossil record of stromatoporoid reefs by 20 million years and sheds light on early biomineralization strategies. This ancient sponge, dated to approximately 480 million years ago, was found in Yuan'an, Yichang, South China, and is unique for constructing its skeleton using fluorapatite.
A research team has uncovered a fundamental brain circuit that distinguishes between direct and vicarious fear, with the locus coeruleus playing a crucial role in processing fear. The study reveals a lateralized LC-NAergic system that separates personal from socially learned fear, shedding light on empathy and social learning.
A recent study published in MDPI reveals that plants, fungi, bacteria, protists, and even some viruses employ venom-like mechanisms to solve critical problems. The research expands our understanding of venom beyond animal organisms, highlighting its broader evolutionary significance.
A new theory suggests locusts follow an uncoordinated version of follow-the-leader behavior rather than synchronized collective motion. Environmental factors influence swarm direction, with individual locusts reacting to their nearest neighbors.
Researchers studied male mouse brain activity during sex to understand the dynamics of neurotransmitters dopamine and acetylcholine. The study revealed that these chemicals control the progression of sexual behavior, with dopamine release slowing down before quick rise during ejaculation.
A new study from the University of Illinois explores how heat stress affects US dairy production, finding a 1% decline in annual milk yield due to high heat and humidity. Small farms are hit harder than large farms, with yields declining by 1.6% annually.
Research from the University of Chicago and University of Missouri reveals how modern birds' larger brains led to changes in their skulls, jaw muscles, and feeding mechanics. This evolution allowed for the development of cranial kinesis, enabling birds to move different parts of their skull independently.
European wolf populations have seen a remarkable 58% growth over the past decade, with at least 21,500 individuals now roaming the continent. This recovery is attributed to conservation efforts and policies supporting large carnivore populations.
A recent study found that intense east coast low storms and marine heatwaves caused the deaths of over 200 weedy seadragons on Sydney beaches. The extreme weather triggered record-breaking waves and rainfall, which seadragons struggle to handle.
A recent study found that slow-growing broilers displayed behaviors associated with positive animal welfare, including standing and preening. In contrast, conventional broilers sat in a lateral posture. The research suggests that growth rate may impact broiler behavior, highlighting the need for further investigation.
A study by Dr. Keum Sehoon's team identified key neural ensembles in the anterior cingulate cortex that encode empathic freezing, a behavioral response to witnessing distress in others. The researchers found that observing another's pain triggers activation in the ACC as if the observer were experiencing pain themselves.
Researchers used a novel approach to estimate megalodon's body length and shape, finding it closer in shape to a lemon shark or large whale. The study suggests the prehistoric predator may have reached about 80 feet in length and weighed an estimated 94 tons.
The Libroscope initiative seeks to unlock and link data from scientific literature to support understanding of biodiversity. By 2035, the power of biodiversity knowledge will be fully leveraged within an open science framework.
Researchers found that ancient frog relatives thrived after the Permian-Triassic mass extinction due to their generalist feeding ecology and ability to feed on a wide variety of prey. They were able to survive and even flourish in freshwater habitats, which provided them with stable food resources amidst the turbulent Triassic ecosystem.
A recent study by Indian Institute of Science found that tropical lizards, such as rock agamas, prioritize variable food sources over constant ones when hungry. This flexible approach helps them thrive in unpredictable conditions.
Anemonefish provide food to bubble-tip anemones through active provisioning, which increases the host's growth rate. This symbiotic behavior is crucial for the anemonefish as it benefits them by making their hosts larger.
Researchers developed a novel approach using electrospun poly(Lactic-co-Glycolic Acid) membrane with autologous cells to treat oral mucositis, a painful side effect of chemotherapy. The study showed significant results, with ulcers healed completely within six days and reduced inflammation.
A study published in Scientific Reports found that cows with certain personalities tend to graze more widely or stick close to the herd. Researchers used sweet molasses feed to induce grazing behaviors, revealing insights into optimal cattle distribution and nutrition.
A team of researchers from Osaka Metropolitan University observed wild medaka behavior in their river habitat, discovering that they spawn around midnight. The study also found that males exhibit two types of courtship behaviors: chasing females and a display of making quick circles in front of the opposite sex.
The Antarctic midge employs a unique survival mechanism by undergoing quiescence in its first year and obligate diapause in its second. This adaptation allows the insect to quickly resume development when temperatures rise.
Researchers have found biofluorescence in 37 of the 45 known birds-of-paradise species, suggesting it plays a crucial role in male-male interactions and mating displays. The phenomenon is most prominent in males' bright plumage and skin areas highlighted during courtship displays.
Researchers uncover statistically significant structures in humpback whale song, mirroring patterns found in all human languages. This breakthrough highlights a deep commonality between humans and humpback whales, showcasing the role of learning and transmission in complex communication systems.
A study on six Japanese macaques reveals that bodily responses like self-scratching predict pessimistic judgment bias, but not vice versa. This suggests an evolutionary conserved system where monkeys address immediate needs through bodily responses before engaging in cognitive information processing.
Researchers at Tokyo University of Science have found that opioid delta-receptor agonists can alleviate stress-induced IBS symptoms in a validated mouse model by targeting the central nervous system. The study suggests that these drugs could provide a more definitive solution for IBS with minimal adverse effects.
A team of scientists discovered polar bear sebum's anti-icing properties, making it harder for ice to stick. The study sheds light on polar bear ecology and may lead to sustainable anti-ice surface coatings.
A study found that working sled dogs take a day to adjust to the change in routine caused by Daylight Savings Time, whereas pet dogs and their owners show no significant changes. Older pet dogs are less active on the first morning after the time shift.
Aging cats with chronic kidney disease (CKD) have lower levels of key kidney transporter genes, leading to impaired waste removal. Monitoring these transporters and toxin buildup may help detect CKD early and improve treatment options.
Tobias Ackels' research reveals that mammals can differentiate between odor sources at lightning speed, using a temporal dimension to orient themselves in space. This ability is encoded in the output of the olfactory bulb and could be used for early detection of dementia.
A study found that ocean acidification can shift the sex ratio of oysters towards females, a mechanism known as environmental sex determination. This phenomenon was observed across multiple generations in both hatcheries and natural habitats, highlighting the potential impact of climate change on marine ecosystems.
Researchers identified distinct metabolic profiles in skeletal muscle of Taoyuan Black pig compared to Duroc pig, with correlations to intramuscular fat content and lipid metabolism. The study provides insights into the muscle-adipose axis and potential targets for nutritional regulation.
Desert lizards are facing a 'cost-of-living' squeeze due to climate warming, requiring more food while having less time to find it. Researchers developed a model combining physics and biology to predict energy pressures on these animals.
Researchers have developed a novel bioprocess that transforms carbon dioxide and electricity into single-cell protein, surpassing traditional sources like fish and soybean meal. The process produces a nutrient-rich food source with essential amino acids, offering a promising solution to global food security and climate challenges.
A new study reveals that delta opioid receptor agonist KNT-127 has a rapid and effective antidepressant effect with minimal side effects. The research highlights the molecular mechanisms underlying its action, including mTOR signaling pathways and Akt activation in the medial prefrontal cortex.
Parrots display automatic imitation of intransitive (goal-less) actions, a phenomenon previously documented only in humans. The study also suggests the presence of a mirror-neuron system in parrots, akin to that found in humans.
A study by Osaka Metropolitan University experts found that male medaka can mate up to 19 times a day, releasing more than 50% of their daily sperm output in the first three matings. The fertilization rate decreases significantly after this point, with some cases showing no fertilization.
Researchers found significant functional variations between rodent and human PD-1 due to evolutionary divergence. The study reveals a unique motif present in most mammals but missing in rodents, leading to uniquely weaker rodent PD-1.
A new moray eel species has been discovered in Central Indo-Pacific river mouths, characterized by its deep black coloration and ability to thrive in dim environments. The Hades' snake moray was found in southern Japan, Taiwan, the Philippines, and Fiji, and is considered an important addition to the study of freshwater moray eels.
Researchers at OIST have developed a customizable method for studying detailed dental characteristics of living fish and vertebrates without harming them. This approach allows for non-destructive examination of tooth replacement and development over time, revealing valuable information on feeding habits and comparative anatomy.
Researchers developed biodegradable polymeric nanoparticles that selectively target cancer cells with two approved drug pairs for skin and breast cancers. The treatment showed significantly enhanced therapeutic effects, reduced tumor size, and prolonged median survival in mice.
Scientists investigated the role of ancient VR type-1 (ancV1R) receptor in pheromone detection using knockout mice. The study found that ancV1R-deficient female mice had impaired pheromone detection and exhibited abnormal sexual behavior.
Researchers observed California ground squirrels hunting, eating and competing over vole prey, revealing a carnivorous summer behavior. This flexible diet suggests they can adapt to changing environments.
Researchers at Eötvös Loránd University found that dogs can recognize their owners based on pre-recorded speech, demonstrating an ability to discriminate between familiar voices. Dogs performed well in matching the correct owner with their voice, with performance best when hearing their main owner's voice.
The IHT Cooling Pads, developed by Purdue University and IHT Group, have earned recognition from the American Society of Agricultural and Biological Engineers (ASABE) and Resource magazine as 2025 AE50 award winners. The mats utilize advanced water-based cooling technology to tackle heat stress in sows and boars.
Researchers from UNIGE found that mechanical forces, linked to tissue growth, drive the emergence of diverse biological structures. They demonstrated this using computer modeling and microscopy, revealing how variations in skin growth rates and stiffness generate distinct scale forms among different crocodilian species.
Researchers found that desert ants rely on the polarity of the geomagnetic field to navigate during learning walks, contradicting previous findings in other insects. The team manipulated magnetic fields and observed the ants' behavior, concluding that a compass-like navigation system is useful for short-distance navigation.