Articles tagged with Ethology
A study from the Alpha Generation Lab found that hyperactive children are more likely to use digital devices, while fidgety children may be more prone to social problems. The researchers suggest a two-way street where digital devices and behavior problems influence each other.
A WVU researcher is studying corollary discharge circuits in fruit flies to better understand how the brain integrates sensory information and coordinate movement. The goal of this research is to shed light on human disease and human performance, with potential applications for improving fighter pilot safety.
A study published in NeuroReport reveals that ultrasound exposure improves depressive behavior in a rat model of depression. OB rats exposed to USV had significantly lower hyperemotionality scores and plasma corticosterone levels than unexposed rats, suggesting potential anti-depressant effects.
A new study at the University of Missouri found that prenatal opioid exposure can trigger long-term neurological or behavioral effects in children. The research suggests that opioids impact the developing fetus' gut microbiome, leading to changes in metabolic pathways and potentially affecting overall health and wellness.
Researchers found that specific vocalizations, known as the 'hunting bark', recruit more group members to hunt and capture prey more effectively. Chimpanzees have been observed joining hunts after hearing these barks, increasing success rates.
A new study explores relationships between domestic cats' hormone levels, gut microbiomes, and social behaviors in cohabitating groups. The research found that low testosterone and cortisol concentrations enabled cats to share space, while high oxytocin levels were associated with less affiliative behavior.
Researchers at Okinawa Institute of Science and Technology Graduate University found that garden eels retreat into their burrows to feed in strong currents, reducing drag on their body by 57%. Their feeding rate peaks at around 0.2 m/s, wider than free-swimming reef fish.
Research by the Animal Welfare Department of IZSAM found that horses living in the wild had higher cortisol levels than those stabled and employed in work activities. The study suggests that proper management by humans is more respectful of horse well-being than a pure nature condition.
Researchers measured wolf sleep using non-invasive EEG, finding similarities with dog sleep but less REM time. The study offers a unique opportunity to understand the effects of domestication and cohabitation on wolf sleep phenotypes.
Male scorpionflies from two locations in Japan use varying mating tactics, with those from Okayama employing 'sneaking' to successfully mate. The study suggests that environmental factors and genetic components influence alternative mating habits.
A new study finds that the quality of dog-owner relationships is similar between Canadian-born dogs and internationally sourced dogs. Owners reported equal satisfaction, attachment, and problematic behaviors, suggesting owner attitudes play a greater role than dog characteristics.
A new study reveals that dogs think about their toys by imagining different sensory features, such as the way they look or smell. Gifted Word Learner dogs were able to recall the name of a toy even in the dark, using a multisensory mental image.
Researchers discovered two novel categories of cells in the BLA that respond to ethological stimuli, including event-specific neurons responding to one type of stimulus and panresponsive neurons responding equally well to multiple stimuli. These findings suggest a larger role for the BLA in memory and behavior.
Neuroscientists demonstrate that mice can learn to suppress their innate escape response, effectively ignoring stimuli deemed non-threatening. The study's findings show that this suppression is specific to the stimulus and dependent on recent threat-escape history.
In a study of 30 males and 400 individuals, researchers found that males with many friends spent less time with them when females entered the picture. The study suggests that male friendships may not be crucial for attracting females or maintaining reproductive success.
Researchers have developed a new tool to visualize leukocytes in the brain vasculature during in vivo two-photon laser scanning microscopy. The tool uses a fluorescent antibody targeting CD45, a ubiquitously expressed protein on white blood cells, allowing for tracking of circulating leukocytes over time and space.
Researchers at Eötvös Loránd University found that dogs with higher attachment scores spend more time in deep sleep and relax better in new environments. The study suggests a similarity between dog-owner relationships and human-child relationships.
Researchers at Sainsbury Wellcome Centre found that mice can choose the best escape route after only 10 minutes of exploration, without needing to experience threat. The study suggests that mice use innate heuristics and natural exploration to learn this information.
A study led by Tel Aviv University researchers reveals a common mechanism underlying genetic mutations associated with autism, schizophrenia, and other neurological disorders. The discovery points to an experimental drug developed by the team as a potential treatment for these conditions.
In Chinese penduline tits, egg burial is primarily done to prevent eggs from rolling out of the nest in strong winds, a function that may have evolved in ancient species of the genus. This study found that 45% of eggs in experimental nests showed signs of being blown out, highlighting the importance of egg burial in these birds.
Researchers at EPFL's School of Life Sciences create a digital twin of Drosophila called NeuroMechFly, which uses biomechanical modeling and machine learning to simulate the fly's movements. The model is validated through experiments that demonstrate its accuracy in replicating real animal behaviors.
Researchers found that dogs process human and canine vocalizations differently in their brains, responding to emotional content and distinct neural pathways. This groundbreaking study provides new insights into the neural functions of canine auditory perception.
Researchers at ETH Zurich have developed an automated way to analyze animal behavior from video footage using computer vision and machine learning. The new algorithm can distinguish individual animals and identify specific behaviors, such as curiosity or fear responses, with high accuracy.
Researchers found that forced proximity increased social grooming in random pairs of vampire bats, which persisted for over two months. The study suggests a causal relationship between being forced into close proximity and forming preferences for each other, echoing the human experience of college roommates.
Fish species zebra mbuna and stingrays are found to possess numerical abilities on par with other vertebrate species. Through training, six of the eight zebra mbuna and three out of eight stingrays learned to associate blue with addition and yellow with subtraction, demonstrating consistent performance in recognizing numbers from 1 to 5.
A survey of Finnish dog-owners found that repetitive behaviors like tail-chasing are more common among first-time owners, those living with larger families, and exercising for less than an hour per day. These behaviors were associated with a range of environmental, lifestyle, and genetic factors.
A study found that Asian elephant males experience increased stress when alone or in male-dominated groups, while females show lower stress when accompanied by babies. The researchers also discovered that social bonds play a crucial role in regulating stress hormone levels in these animals.
Researchers from CNRS have identified the mechanisms behind synchronized spider hunting behavior. Spiders in tropical colonies use vibrations to mask prey signals, increasing their ability to detect and capture prey up to several hundred times their size.
Researchers provide additional evidence that cleaner fish Labroides dimidiatus have Mirror Self-Recognition (MSR), passing the mark test with 94% positive result. The study addresses criticisms by using ecologically relevant marks and testing visual recognition of mirror images.
Researchers found that dogs with more extroverted, conscientious, and open personalities tend to rank higher in the hierarchy, while friendlier dogs tend to rank lower. Older dogs also dominate in multi-dog households. The study used a large-scale online questionnaire to analyze the personality traits of over 1,000 dogs.
A team of researchers describes a novel flight style in the smallest free-living insects, beetles of the featherwing family. They found that these insects use a bristled wing style and rowing movements to excel at flight, defying conventional wisdom about insect aerodynamics.
A study by University of Exeter scientists found that pheasants' heads cool rapidly before a fight, indicating a stress response. After the confrontation, their heads heat up again as normal blood flow is restored.
A new study by researchers from Eötvös Loránd University found that dog brains can differentiate between two languages, with distinct activity patterns in primary and secondary auditory cortices. The study used brain imaging to compare dogs' responses to speech and non-speech stimuli in Spanish and Hungarian.
Researchers at Tel Aviv University successfully treated autism in animal models with medical cannabis oil, improving behavioral and biochemical parameters. The treatment showed significant improvement in compulsive and anxious behaviors, and a decrease in the concentration of the arousing neurotransmitter glutamate.
A team built a virtual reality system to study the search behavior of male silkmoths, revealing that accurate information from multiple modalities increases success rate. The system also showed a modulation of behavior based on environmental complexity.
A study conducted at the University of São Paulo analyzed how dogs living inside the home exchange looks with their owners to obtain food or other desired objects. The researchers found that 95.7% of those living inside the home used gaze alternation at least once, while those living outside communicated less intensely.
Researchers at Tel Aviv University conducted a cross-adoption experiment with fruit bat pups to determine whether boldness is genetic or learned. The findings indicate that the pups behave like their adoptive mothers, not biological mothers, suggesting that boldness is an acquired trait passed on through mother's milk.
A study reveals that prairie voles are highly motivated by social interactions with familiar animals, while meadow voles tolerate friends and family but lack strong motivation. Oxytocin receptor density is associated with individual variation in social behavior.
A new study by Hungarian researchers finds that dogs use complex computations and brain regions similar to humans to learn word boundaries in speech. Dogs can recognize syllable patterning, such as frequent words with consistent syllables, and use this information to extract words from continuous speech.
A new study reveals that early dinosaurs, such as Mussaurus patagonicus, likely formed complex herds with adults foraging and taking care of young. Fossils found in southern Patagonia indicate an age segregation, suggesting a larger community structure where adults shared in raising the whole community.
A study on over 100 species found that climate change affects animal behavior, including changes in aggression, activity, and sociability. The researchers believe that behavioral changes can serve as a buffer for animals to avoid negative effects of environmental change.
Fish from the Gobiidae family change color more efficiently and effectively when alone, contrary to previous assumptions. This is likely due to reduced stress levels, allowing for faster and more accurate camouflage.
Researchers used CRISPR-Cas9 technique to edit genes in zebrafish larvae, altering individual behavioral responses and group behavior. The study suggests two simple visuomotor reflexes explain the collective behavior of zebrafish.
A new study reveals that some gifted dogs can learn up to 12 new toy names in just one week and remember them for at least two months. The researchers tested these talented dogs as part of the Genius Dog Challenge, a series of live broadcasted experiments.
Researchers discovered zebrafish neurons that monitor prediction errors to efficiently avoid danger, creating a 'hazard map' in the brain. This study sheds light on brain circuits shared across vertebrates, including humans.
Researchers at Eötvös Loránd University discovered that dogs exhibit attachment behaviors similar to human infants, responding positively to their owner's speech. The study found that the reward center of a dog's brain is more sensitive to its owner's voice compared to a familiar person's praise.
Scientists have discovered that geckos use their tails to recover from head-first crashes into rainforest trees, with implications for the design of agile robots. This versatile behavior allows geckos to stabilize themselves after impact and maintain control during gliding maneuvers.
Research found a strong correlation between Aβ42 peptide levels in companion dog brains and cognitive decline, supporting the use of dogs as models for Alzheimer's disease. The study's results demonstrate the potential of canine cognitive dysfunction as a tool for understanding human aging and age-related diseases.
Researchers captured footage of a tortoise attacking and killing a tern chick on Frégate Island. The tortoise approached the chick with its jaws open, suggesting it was an experienced hunter. This unusual behavior challenges previous assumptions about tortoises' diets and hunting habits.
A study on red junglefowl chicks found that early experiences can affect impulsivity, contradicting initial expectations. The researchers also discovered a link between gene expression and impulsivity, suggesting that genetic factors contribute to individual differences in impulsive behavior.
A University of Houston researcher is using cutting-edge techniques to study how testosterone affects the brain and social behavior. Using genetically modified African cichlid fish, Beau Alward aims to identify the specific genes and neurons involved in these processes.
Researchers studied insect olfactory system to improve repellent design and drug screening. They found that chemoreceptor tuning depends on ligand-binding subunit identity, revealing diverse molecular mechanisms. These findings have potential applications in 'mammalian' chemogenetics and insect-based research.
A new study from the University of California - Davis found that domestic cats overwhelmingly choose freely available food over food puzzles, contrary to expected contrafreeloading behavior. Cats spent more time at the tray and made more first choices to eat from it than the puzzle, suggesting a preference for easy access to food.
The study suggests that COVID-19 eradication is technically possible due to the availability of safe vaccines, lifelong immunity, and effective government management. However, securing high vaccine coverage and responding quickly to variants are major challenges.
Researchers from Chapman University discover that non-reproductive birds' brains mimic changes in female mice post-partum when induced to become parents. This finding opens new avenues for understanding the regulation of parental care across vertebrates.
A study by the Max Planck Institute of Animal Behavior found that declining rainfall in the Congo Basin has lengthened bonobo sleeping nest decay times by 17 days over 15 years. This could lead to overestimating population density and jeopardizing conservation efforts.
A new study using drone footage reveals that killer whales have complex social structures, favoring interactions with specific individuals of the same sex and similar age. Younger whales and females play a central role in these groups, while older whales become less socially connected.
A new study reveals that both tame and aggressive silver fox breeds have larger brains and more grey matter than their control group counterparts. This finding contradicts previous studies on other domesticated animals, which showed smaller brain sizes with less grey matter.
Researchers found that HVC neurons increase activity during solo syllable production and decrease when the partner sings, suggesting inhibition of motor circuits. This neural mechanism enables rapid turn-taking in duet singing, where males and females rapidly take turns singing at a rate of 2 to 5 Hz.
A small Japanese fishing community recovered from the 2011 Tohoku tsunami through cooperative activity, including joint operations and fixed-net fishing. This phenomenon challenges the 'disaster utopia' concept, which suggests temporary collaborative behavior after emergencies.