Articles tagged with Animal Science
Researchers found that Indo-Pacific bottlenose dolphins rub against corals to agitate tiny polyps, releasing mucus with antibacterial and antioxidative properties. This discovery suggests the mucus regulates the dolphin's skin microbiome and treats infections.
Researchers found that baby leatherback hatchlings are less sensitive to light than loggerheads, leading to circling behavior and delayed ocean entry. This difference may be an adaptation for detecting prey or habitats in the open ocean.
Researchers develop system to measure power distribution between sexes in animals, finding females rule in some species, with reproductive control as common thread. The study proposes a new framework to quantify intersexual power relationships across mammalian societies.
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 have untangled the intricate physics and neural controls that enable dragonflies to right themselves while falling. They found that vision plays a key role in initiating the righting reflex, which triggers a series of reflexes that send neural signals to the wings.
Researchers discover that type 1 TPCs encode SV channels in plant vacuoles, while type 2 TPCs likely encode distinct ion channels. This study provides functional and evolutionary insights into the TPC family in plants, shedding light on their role in plant growth and defence mechanisms.
A large-scale international study, led by Tel Aviv University's Dr. Omri Bronstein, found that many species of echinoids, including sea urchins, survived a mass extinction event 50 million years earlier than thought. The findings suggest that estimates of evolutionary timelines may err by tens of millions of years.
A study published in PLOS Genetics reveals that Patagonian sheepdogs share a common ancestor with modern UK herding breeds, dating back around 150 years. The breed's unique genetic makeup reflects the pattern of European colonization in South America.
A new study analyzed 30,563 records of dog deaths in the UK, finding that Jack Russell Terriers have the highest life expectancy at birth (12.72 years), while French Bulldogs have one of the lowest (4.53 years). Neutering also appears to increase life expectancy for dogs.
Researchers at Gauhati University studied roadkill on a 64-kilometer stretch of National Highway 715 in India's Kaziranga-Karbi Anglong Landscape. They found dramatic mortality rates among frogs, toads, snakes, and lizards, with over 6000 animals killed annually.
New research from Washington University in St. Louis shows that crows and ravens' diverse traits enabled their rapid global expansion. Their intelligence allowed them to adapt to new environments, while their big bodies gave them a competitive advantage.
Johns Hopkins scientists discovered three brain areas – premotor, primary motor, and primary somatosensory – that work together to control sequential movements. These regions are involved in processing sensory cues and adapting to unexpected events, which could lead to new treatments for motor disorders.
A survey of over 2,500 dog owners found that nutritionally sound vegan diets were associated with better health outcomes for dogs compared to raw or conventional meat diets. The study controlled for various factors and suggested that a well-planned vegan diet may be the healthiest choice for canines.
Researchers tracked 60 stingrays for a year, finding they prefer shallow waters but move into deeper lagoons during extreme tides and temperatures. Climate change may alter their preferred habitat, putting them at risk from sharks.
Researchers propose that wildlife can return phosphorus to the land by restoring interconnected animal communities, revitalizing ancient pathways of natural fertilization. This approach aims to generate sources of fertilizer for farmers and increase ecosystem resilience in the face of climate change.
A new study published in Science Magazine found that nearly 42% of cattle destined for the 'Raised without Antibiotics' market have been treated with antibiotics, casting doubt on the accuracy of these labels. The research team suggests strengthening verification and enforcement to curb antibiotic use in food-animal production.
A study found that less than 5% of dog owners in the US are aware of and follow FDA guidelines for safe pet food and dish handling. The researchers suggest better education and implementation of these guidelines could reduce contamination and improve hygiene practices.
A comprehensive study of 8,000 birds in Israel found significant changes in bird morphology over the past 70 years, likely due to global warming. Some species became lighter while others gained size, increasing their surface area-to-volume ratio to facilitate heat loss.
Researchers have identified avocado meal as a safe and palatable fiber source for dogs, rivaling industry standards in digestibility and energy intake. The study found that persin levels were undetectable in processed meal, contradicting long-held concerns about avocado toxicity in pets.
Researchers at Boston University have developed optoacoustic neurostimulation with single neuron and subcellular level precision. Optoacoustic neuromodulation may offer advantages over ultrasonic neuromodulation, including higher spatial temporal resolution.
A study analyzing 10 years of citizen science data on wildlife roadkill in Flanders found that some species are more prone to being killed by vehicles. The research used data from online platforms like Waarnemingen.be, which has collected over 90,000 roadkill records since 2008.
A York University expert argues that invertebrates can feel pain, have emotions, and deserve moral consideration. Research suggests that decapod crustaceans and cephalopod molluscs are sentient, challenging traditional views on animal welfare.
A massive volcanic eruption at the end of the Triassic period caused a global cooling effect, leading to the mass extinction. The event paved the way for the rise of dinosaurs as their natural predators went extinct.
Researchers have discovered that sea sponges themselves produce biologically active compounds, including terpenes with potential malaria-fighting properties. This finding represents a 'fundamental shift' in the field and opens up new avenues for drug discovery using animals as vessels.
A study reveals that new bird species arise in lowland habitats before moving higher into mountainous areas, where genetic differences accumulate. The research suggests that climate fluctuations, particularly during the Pleistocene era, contributed to the evolution of these high-altitude populations.
A new study finds that large wild animals like elephants and whales can help restore ecosystems and battle climate change by dispersing seeds, clearing vegetation, and increasing albedo. Protecting these animals also supports local biodiversity and ecological resilience in temperate, tropical, and subtropical grassland ecosystems.
Researchers from University of California - Davis found that ultrasounds can detect when abalone are ready to spawn without touching them. The technique creates a gonad index score ranging from 1 to 5 indicating readiness for reproduction.
A recent study reveals that parthenogenesis, a type of asexual reproduction, leads to a loss of efficiency in selecting beneficial mutations, reduced genetic diversity, and decreased heterozygosity in stick insects. This has significant implications for species' ability to adapt to changing environments.
Arizona State University professor Katie Hinde explores successful public engagement in science, highlighting the power of stories and narratives in teaching children about science. Her March Mammal Madness game has reached over half a million students, featuring simulated animal battles and providing educational resources for educators.
Regulated hunting can reduce population density, allowing fewer animals to compete for resources during harsh winter conditions. This approach can stabilize population fluctuations and buffer the impacts of extreme climatic events on species with limited food resources.
A study from Washington University in St. Louis found that birds with bigger brains relative to their bodies reduced their body size by only about one-third compared to smaller-brained birds. This suggests that cognitive power may play a role in helping certain species adapt to climate change.
A new fossil discovery at the Chengjiang Fossil Site has provided a crucial link in understanding how arthropods evolved specialized limbs for breathing. The 520-million-year-old Erratus sperare organism has revealed the origins of biramous limbs, found in modern water-dwelling arthropods.
A new study using a two-dimensional drawing technique has found no general patterns in the fin and body shapes of five warm-blooded Lamniformes species to determine Megalodon's shape. The research challenges previous conclusions about the extinct shark's body form, suggesting that warm bloodedness does not make sharks differently shaped.
A team of scientists has identified a previously unknown brain region involved in maternal behaviors in mice, which is linked to hormone-sensitive neurons. The discovery sheds new light on the biological mechanisms underlying pregnancy and its effects on brain circuits.
A recent study evaluated pet cages, running wheels, and hay racks sold in German retailers and found that many failed to meet animal welfare standards. The research highlights concerns about the quality of pet supplies sold in retail stores.
Research shows that cow-calf pairs can be managed in drylots throughout the summer grazing period without significant negative effects on growth performance, lactation, and reproductive rates. Calves raised in drylots had increased performance compared to pasture-raised calves, but still showed signs of stress during weaning.
A multidisciplinary team at UNIGE has developed a simple mathematical equation to explain the complex distribution of scales in ocellated lizards. This discovery contributes to a better understanding of skin color pattern evolution and provides an optimal pattern for animal survival.
Research published in PLOS ONE found that flat-faced breeds like Neapolitan mastiffs and English bulldogs are disproportionately affected by the condition. The study suggests that breed-specific characteristics may contribute to the development of cherry eye.
Researchers from Swansea University and University of Cape Town used GPS collars to study baboons' collective behavior in urban and natural spaces. The study found that despite changes in movement patterns, leader-follower roles remained consistent, suggesting flexibility and robustness in group cohesion.
Researchers discovered adaptations allowing desert fish to thrive in harsh conditions by maintaining genetic diversity and adapting genes for aridity. This finding challenges the idea that small populations are evolutionary dead ends.
Researchers at GIST demonstrate that ultrasound pulses can reduce β-amyloid plaque concentration and tau protein levels in AD-model mice, suggesting a promising non-invasive therapeutic strategy. The treatment also improves brain connectivity without causing harm to brain tissue.
A new study published in the Journal of Dairy Science found that Norwegian Red calf personality is related to feeding behavior and growth, with calves displaying different traits affecting their milk and concentrate intake. Calves weaned based on individual concentrate intake had higher average daily gains postweaning.
Researchers found that the oral plug, a structure in fin whales, blocks the pharynx and prevents water from entering during lunge feeding. This allows the whale to swallow prey while keeping the respiratory tract protected.
Scientists at the University of Missouri discovered that bisphenol A (BPA) exposure during pregnancy can negatively impact fetal brain development. MicroRNAs in the placenta play a key role in regulating cellular functions, including neural development. Researchers believe that microRNA packages could reach the brain through the placen...
Young dairy calves are motivated to seek full social contact, even with partial interaction, according to a new study. The researchers found that calves pushed more weight to access pens with a social partner compared to empty pens, highlighting the importance of socialization for calf development.
A team of researchers found that animals with strong site fidelity, which is returning to the same places to eat, travel, and raise their young, may not survive or reproduce as well in changing landscapes. This can lead to population declines, especially in species like mule deer affected by human development.
Researchers found that increasing energy intake by feeding more milk replacer supports greater growth during summer. However, feeding frequency had no effect on growth during summer but improved growth during winter. The study suggests optimizing feeding strategies to maximize calf growth and welfare in hot environments.
A new study found that Tasmanian devils have picky diets and only consume their favorite foods, unlike most other scavengers. The researchers tracked the eating habits of 71 devils using whisker samples and found that most devils choose to dine on specific foods.
Researchers found that dolphin females have a functional clitoris, with large areas of erectile tissue, nerves, and free nerve endings similar to those in human clitoris. The study suggests that the dolphin clitoris plays a role in female sexual pleasure, providing insights into animal sexuality.
Two independent research groups use airborne environmental DNA (eDNA) to detect a wide range of animal species, including those in zoos and beyond. The technique shows promise for monitoring biodiversity and conservation efforts, especially for vulnerable or endangered species.
Researchers discovered that California mice consume monarch butterflies, which could disrupt ecosystems due to declining western monarch populations. The study highlights the interconnectedness of species and the importance of conservation efforts to protect native animals.
Researchers at the CNIC have identified a specific type of neutrophil behavior that predicts cardiovascular disease. The study provides crucial information for developing targeted therapies to minimize the consequences of myocardial infarction.
Researchers at Ben-Gurion University successfully trained a goldfish to drive a robotic car in new research exploring animal navigation abilities. The study found that goldfish's innate navigational skills surpass their aquatic environment, demonstrating universal cognitive abilities.
Oceanographers replaced ship-based studies with sensors attached to seals to navigate icy waters, revealing seasonally varying water flows and their impact on biological production. The study found that warm, low-salinity water appears during autumn, positively affecting seal foraging behavior and potentially enhancing prey availability.
Researchers develop system to image millions of brain cell connections in real-time, revealing key locations for learning and memory encoding. The new tool allows scientists to study synapse activity on a massive scale, with potential applications in understanding diseases such as Alzheimer's and autism.
The 2020 wildfires in Brazil's Pantanal wetland resulted in the deaths of an estimated 16.9 million vertebrates, including lizards, birds, and primates. The study estimates that between 13.2 million and 18.8 million small vertebrates and 691,000 to 1.2 million medium-to-large vertebrates were killed.
A recent study published in Canine Medicine and Genetics found that French Bulldogs have a significantly higher risk of being diagnosed with 20 common health disorders compared to other breeds. The authors propose breeding towards more moderate characteristics to reduce these risks.
A group of Croatian students used photographs from iNaturalist to describe a new species of pygmy grasshopper, challenging traditional methods. The study highlights the potential of citizen science and encourages people to engage with nature to raise awareness about conservation.
A study by UC Riverside scientists has identified a set of genes on a single chromosome associated with the production of male or female offspring in ant colonies. The discovery sheds light on the complex relationships between genetics and environmental factors in shaping the sex ratio of these societies.
A team of scientists led by Vimal Selvaraj has developed a way to preserve the genetic diversity of fast-disappearing native cattle breeds using stem cells. This technology could be used to clone extinct breeds or to produce animals with desirable traits, such as disease resistance and extreme weather tolerance.