Articles tagged with Animal Science
A Tel Aviv University study reveals that corals' fluorescence serves as a lure for plankton, which are then consumed by predators like corals. The researchers found that green-fluorescent corals were 25% more preyed upon than yellow-fluorescent ones.
Researchers found that frog-eating bats could recognize ringtones indicating a food reward up to four years later. The bats learned to associate specific tones with rewards and were able to recall these associations even after long periods of time.
Scientists at the University of Bristol found that habitat differences in Amazonian rainforests predict changes in brain structure, particularly in areas processing visual information. The study used 160 samples across 16 species and highlights the importance of visual ecology in shaping entire animal communities.
Researchers at NIST found that gecko setae are coated in an ultra-thin layer of lipids, which repel water and help maintain grip on wet surfaces. This discovery could lead to the development of biomimetic products, such as gecko boots or gloves for improved traction.
A fossilized wrist bone from a 6-7 million-year-old giant panda ancestor reveals the earliest evidence of a bamboo diet and the evolution of its unique 'thumb' structure. The discovery sheds light on how this adaptation allowed ancient pandas to thrive on a low-nutrient bamboo diet.
Researchers at the University of Illinois Urbana-Champaign created a high-resolution map of the bearded dragon's brain, providing a standardized protocol for future clinical cases. The study identified nine anatomic structures in the brain and developed a safe and efficient MRI and sedation protocol.
A new study in Science found that many species of turtles and tortoises have slowed or switched off senescence, challenging evolutionary theories. Out of 52 species, 75% show extremely slow senescence, and 80% have slower senescence than modern humans.
Researchers developed live-cell imaging to study chromosome segregation errors and their impact on embryonic development. They found that micronucleus formation during early cleavage division is a potential hallmark of preimplantation embryonic loss in cattle.
A new study in the Journal of Dairy Science finds that dairy cows exposed to wildfire smoke experience reduced milk production and altered immune function. The researchers observed a decrease in milk yield for seven consecutive days during the smoke exposure period, which persisted for another seven days post-exposure.
A newly installed deep-water pipeline has led to a significant increase in the abundance and diversity of marine life on the Angolan coast. The study found that the pipeline provided shelter and trapped organic matter, which animals feed on, resulting in an immediate boost to sea-floor animals.
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 have found that deep-diving seals rely on their sensitive whiskers to detect water movement and capture prey in the absence of light. The study provides insight into the unique sensory adaptations of marine mammals and sheds light on how seals navigate and hunt in extreme environments.
A new study finds that polar bears and brown bears have a complicated evolutionary history due to interbreeding. The analysis of modern bear genomes and ancient DNA from a 115,000-year-old tooth reveals gene flow from brown bears into polar bears, challenging previous hypotheses.
Debilitating snare injuries in female spotted hyenas of the Serengeti delayed their age at first reproduction and reduced litter size, while also decreasing offspring survival rates. This long-term decrease in reproductive performance may result from increased inflammatory and immune responses to snare injuries.
A study by Dr. Anja Weidenmüller reveals that glyphosate affects the collective thermoregulatory capacity of bumblebee colonies, impacting brood development and colony growth. This effect is particularly pronounced in times of resource scarcity, highlighting the need to reassess pesticide approval procedures.
Researchers found that hummingbirds experience a 37% drop in metabolic rate and become torpid for longer periods at high elevations, making it unlikely they can relocate to higher altitudes. The birds' physiological response suggests lower oxygen availability and low air pressure may be difficult challenges to overcome.
Research reveals Patagonian sheepdogs share common traits with European herding breeds, tracing back to extinct UK shepherds. The study uses genomic characterization and DNA sequencing to identify the connection between the two populations.
A new study reveals that humans can hear as well as seals under water, with an average hearing threshold of 71 dB at 500 Hz. However, human hearing is not adapted to work well under water and has a reduced ability to determine sound direction.
A team of researchers found that jackdaws use a form of 'consensus decision-making' to decide when to leave their roosts en masse. By combining recorded calls with tests in which pre-recorded calls were played, the team discovered that birds effectively 'cast a vote' through calling out to reach a consensus.
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 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 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 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.
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.
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.
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.
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.
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.
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.
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 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.
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.
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 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.