Articles tagged with Mammals
Comprehensive exploration of living organisms, biological systems, and life processes across all scales from molecules to ecosystems. Encompasses cutting-edge research in biology, genetics, molecular biology, ecology, biochemistry, microbiology, botany, zoology, evolutionary biology, genomics, and biotechnology. Investigates cellular mechanisms, organism development, genetic inheritance, biodiversity conservation, metabolic processes, protein synthesis, DNA sequencing, CRISPR gene editing, stem cell research, and the fundamental principles governing all forms of life on Earth.
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Comprehensive investigation of human society, behavior, relationships, and social structures through systematic research and analysis. Encompasses psychology, sociology, anthropology, economics, political science, linguistics, education, demography, communications, and social research methodologies. Examines human cognition, social interactions, cultural phenomena, economic systems, political institutions, language and communication, educational processes, population dynamics, and the complex social, cultural, economic, and political forces shaping human societies, communities, and civilizations throughout history and across the contemporary world.
Fundamental study of the non-living natural world, matter, energy, and physical phenomena governing the universe. Encompasses physics, chemistry, earth sciences, atmospheric sciences, oceanography, materials science, and the investigation of physical laws, chemical reactions, geological processes, climate systems, and planetary dynamics. Explores everything from subatomic particles and quantum mechanics to planetary systems and cosmic phenomena, including energy transformations, molecular interactions, elemental properties, weather patterns, tectonic activity, and the fundamental forces and principles underlying the physical nature of reality.
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Comprehensive study of the universe beyond Earth, encompassing celestial objects, cosmic phenomena, and space exploration. Includes astronomy, astrophysics, planetary science, cosmology, space physics, astrobiology, and space technology. Investigates stars, galaxies, planets, moons, asteroids, comets, black holes, nebulae, exoplanets, dark matter, dark energy, cosmic microwave background, stellar evolution, planetary formation, space weather, solar system dynamics, the search for extraterrestrial life, and humanity's efforts to explore, understand, and unlock the mysteries of the cosmos through observation, theory, and space missions.
Comprehensive examination of tools, techniques, methodologies, and approaches used across scientific disciplines to conduct research, collect data, and analyze results. Encompasses experimental procedures, analytical methods, measurement techniques, instrumentation, imaging technologies, spectroscopic methods, laboratory protocols, observational studies, statistical analysis, computational methods, data visualization, quality control, and methodological innovations. Addresses the practical techniques and theoretical frameworks enabling scientists to investigate phenomena, test hypotheses, gather evidence, ensure reproducibility, and generate reliable knowledge through systematic, rigorous investigation across all areas of scientific inquiry.
Study of abstract structures, patterns, quantities, relationships, and logical reasoning through pure and applied mathematical disciplines. Encompasses algebra, calculus, geometry, topology, number theory, analysis, discrete mathematics, mathematical logic, set theory, probability, statistics, and computational mathematics. Investigates mathematical structures, theorems, proofs, algorithms, functions, equations, and the rigorous logical frameworks underlying quantitative reasoning. Provides the foundational language and tools for all scientific fields, enabling precise description of natural phenomena, modeling of complex systems, and the development of technologies across physics, engineering, computer science, economics, and all quantitative sciences.
A new study by University of Exeter researchers predicts which regions will be colonized by non-native birds, mammals, and plants. The study found that suitable habitats, dispersal ability, and history of introduction are key predictors of spread.
Researchers studied over 100 noctilionoid bat species, finding that different dietary types drove modifications in tooth number, size, shape, and position. For instance, fruit-eating bats have shorter jaws with reduced middle premolars, while nectar-feeders have longer jaws with room for more teeth.
Researchers found 13 mummified leaf-eared mouse cadavers atop 4-mile-high volcanoes, with DNA analysis revealing a distinct population from lower-altitude mice. The discovery suggests the rodents ascended without human assistance and have adapted to extreme conditions.
A Rice University scientist used a mixed-reality headset with custom-designed software to measure and analyze forest floor vegetation in Tanzania's Udzungwa Mountains National Park. The study found that mammal diversity increases with forest floor habitat surface area, leading to a greater variety of ecological characteristics.
A study found that wildlife exits designed for ocelots in Texas were used by 10 mammal species, including bobcats and coyotes, to exit highways. The exits function as designed, but ongoing research aims to improve their effectiveness.
A new study provides comprehensive genomic resources for pangolins, helping protect these threatened mammals from extinction due to habitat loss and trafficking. The data will aid in conservation priorities and management plans, as well as tracing the pangolin trade.
A recent study found that animals in the Greater Kruger National Park react with alarm to hearing human voices, fleeing waterholes and abandoning their habitat. The researchers used custom sound systems to compare the fear response of mammals to humans versus lions.
Scientists rediscovered the Species that was first described in 1916, found only in southern Brazil, with an increased distribution to diverse terrains, including rainforests and grasslands. The species is currently Data Deficient due to habitat fragmentation and agricultural pressure.
Research suggests that a merged supercontinent will lead to extreme temperatures, making most of the world uninhabitable for mammals. The team used supercomputer climate models to simulate temperature trends, leading to predictions of widespread heat stress and mortality in humans and other species.
A new species of spiny mouse, Neacomys marci, has been identified in northwestern Ecuador. The discovery sheds light on the previously underestimated diversity of the Spiny Mouse genus.
A team of researchers used a novel methodology to investigate the impact of large mammal extinctions on their environments. They found that earlier biodiversity losses did not necessarily hinder mammal community functioning, but later losses were linked to changes in climate and vegetation patterns.
The editorial discusses epigenetic mechanisms leading to oocyte quality loss, a significant factor in age-related fertility decline. Researchers highlight the importance of understanding this process to address the growing issue of advanced maternal age and its impact on reproduction.
Researchers at Kyoto University have discovered the mechanism by which breast cancer forms in mammalian epithelial cells. The team found that approximately 20 mutations accumulate annually in each cell until menopause, after which the rate decreases significantly.
Researchers analyzed data from 31 studies and found that cattle face a higher risk of getting tuberculosis from wildlife through indirect interactions. Indirect interaction rates were 154 times higher than direct interaction rates.
Researchers used radiocarbon dating and time-series modeling to study the timing and causes of megafauna extinctions at Rancho La Brea Tar Pits. The team found that a sharp decline in population occurred between 13,070 to 12,900 years ago, coinciding with warming and drying climate change and increased fires sparked by humans.
Scientists have identified two new mole species in eastern Turkey, belonging to the Talpa genus, which has been living undiscovered for up to 3 million years. The study, using cutting-edge DNA technology, confirms their biological distinctness from other moles in the group.
Researchers at George Washington University found that dogs with plain faces are more expressive in their interactions with humans. The study, which analyzed over 100 dog participants, suggests that people can better understand a dog's level of expressivity if their dog has a simpler face.
Scientists will use AI-powered monitoring stations to track species populations and assess the effectiveness of agri-environment schemes in improving biodiversity. The study aims to demonstrate how different farming systems and practices affect species populations, providing crucial evidence for sustainable land management policies.
UK schoolchildren aged 7-11 drew mammals and birds most commonly, with reptiles and amphibians appearing less frequently. The study suggests children's perceptions of local wildlife are skewed towards mammals and birds, hinting at a wider problem of nature disconnect.
Researchers found no conclusive evidence of bird-honey badger cooperation in accessing honey from African bees' nests. Despite anecdotal reports, most communities surveyed denied seeing the two species interact, with only three communities in Tanzania reporting sightings.
Researchers created a detailed analysis of the domestic cat's nasal airway, revealing two distinct regions of air flow during inhalation. The study suggests that the cat nose functions as an efficient dual-purposed gas chromatograph, capable of detecting and separating chemicals quickly and efficiently.
Researchers found that mammals' stiff lower jawbones provide a unique advantage in terms of stiffness, but restrict options for evolution. Despite this limitation, mammals have adapted to eat various foods, rivaling the dietary diversity of vertebrates with multiple bones in their jaws.
A large-scale camera-trap survey reveals that tropical mammals living inside protected areas are not spared the effects of human activity, with specialist species thriving near low-density habitats and generalist species benefiting from diverse environments. The study informs biodiversity policy and highlights the importance of conside...
A new study at Tel Aviv University found that older bats do indeed suffer from age-related hearing loss, but at a relatively slow rate compared to humans. The researchers believe that bats have developed special adaptations to cope with their noisy environment, which could provide insights into human hearing loss.
A biologist at Binghamton University has developed a new method to uncover the parent species of hybrid plants and animals. By examining genomic patterns within these hybrids, researchers can identify distinct ancestries and determine the order in which chromosomes were inherited from their progenitor species.
Researchers discovered that air quality monitoring stations worldwide are collecting eDNA, providing a treasure trove of biodiversity data. This could solve the global problem of tracking biodiversity at massive scales, with thousands of locations and decades of historic data.
Research by Flinders University shows that young red kangaroos in Australia grow faster when exposed to dingoes and inside the dingo-proof fence have slower growth rates. This suggests that the fence may impact different aspects of the kangaroo's life cycle, including population demographics.
Scientists at St. Jude Children's Research Hospital discovered how the current H5N1 avian influenza virus gained new genes and greater virulence as it spread across North America. The researchers found that the virus could severely infect the brains of mammalian research models, a notable departure from previous related strains.
A multidisciplinary team led by Hong Chen successfully induced a torpor-like state in mice using ultrasound, which also worked on rats. The researchers found that stimulating the hypothalamus preoptic area with ultrasound activated neurons and induced changes in body temperature and metabolism, allowing for the preservation of energy.
Researchers found that female arctic ground squirrels are emerging from hibernation earlier every year due to warmer temperatures, potentially leading to healthier litters and higher survival rates. This change is accompanied by differences in male hibernation patterns, which may have negative consequences for the food web.
African spiny mice have been found to produce bone plates similar to those of armadillos, a discovery that challenges previous understanding of mammalian armor. The plates, known as osteoderms, provide protection and are distinct from scales found in other animals.
A recent study by UC Davis researchers found that humans exhibit reproductive inequality similar to other mammals, challenging the notion of human exceptionalism. The study also revealed greater reproductive egalitarianism in societies allowing polygynous marriages, where women have equal access to resources and parenting help.
Researchers at Nagoya University have found that ATP, an energy 'currency' within cells, acts as a neurotransmitter in the brain and causes mammalian ovulation. Administering ATP to rats induced the LH surge leading to ovulation, suggesting a potential new treatment for infertility.
The European Centre for Disease Prevention and Control highlights the rapid spread of avian influenza viruses worldwide, affecting wild bird populations and mammals. The authors warn that human infections with A(H5N1) can be severe and increase the risk of reassortment with mammalian viruses.
Scientists discovered that smaller brontotheres faced high extinction risk in crowded ecological niches, driving biased diversification towards larger sizes. This complex macroevolutionary pattern shows increased survival of larger species due to reduced competition.
Researchers have created a new manual to study human diseases, using evolutionary genomics to analyze genetic risk. The manual reveals the importance of highly constrained genes that unite mammals, providing insights into neurological disorders and psychiatric conditions.
A large-scale genomic study of 240 mammal species reveals previously uncharacterized regulatory elements in the human genome, linked to disease risks and distinctive traits. The research provides insights into the evolutionary development of mammalian genomes and their potential applications in medical research.
A recent study found that temperature and extreme drought drive movement among herds of Plains bison, posing challenges for managing the iconic species. The team analyzed GPS-backed evidence from 33 Plains bison across two sites in Oklahoma, revealing a strong link between air temperature and bison movement.
Early mammals reduced skull bones to redirect stresses during feeding, allowing brain size increase. The combination of miniaturization, reduced skull bones and insect-based diet enabled ancestors to thrive before dinosaurs' extinction.
Researchers developed a model that predicts which species are at risk of becoming threatened or extinct based on climate change, human population growth, and land use patterns. The study aims to shift conservation efforts from reactive to proactive, enabling the protection of species before they reach threatened status.
A new research approach suggests integrating biodiversity auditing into conservation plans to effectively support a wider range of important species. This method has been successfully tested in the UK's East Anglia region and could benefit biodiversity nationally, including the European Union's 2030 Biodiversity Strategy.
A study from the University of East Anglia found that environmental impact assessments often fail to account for species movement between sites, leading to underestimated impacts on wildlife. The research highlights a planned airport development in Portugal that could affect over 10 times the number of Black-tailed Godwits estimated by...
A new species of ancient beaver, Anchitheriomys buceei, has been discovered in Texas and named after Buc-ee's. The beaver lived about 15 million years ago and was about 30% larger than modern beavers.
A new study reveals that northern and southern resident orcas differ in their hunting behaviors, with males catching more salmon per hour than females. Southern resident males outperform females by 152%, highlighting a distinct pattern of foraging that may contribute to the population decline.
Research reveals island-dwelling mammal species face higher extinction risks, with those experiencing extreme size changes being particularly endangered. Human arrival on islands multiplies the probability of extinction by 16, contributing to a 'protracted extinction event' spanning over 100,000 years.
Researchers explore cellular senescence's complex relationship with growth stimulation and cell cycle arrest, revealing potential anti-aging drug targets. Understanding these mechanisms is crucial for developing new treatments for age-related diseases.
A review of evidence suggests that increased parental energy investment in young offspring may have facilitated the evolution of larger brains in some species. This is particularly true for warm-blooded species, which tend to invest more energy in their young through actions such as egg production and lactation.
Researchers developed an updated conservation metric, EDGE2, incorporating scientific uncertainty and status of related species. This approach identifies top-priority species for protection, preserving over 700 million years of evolutionary history, and allocates limited funds effectively.
The Operation Pangolin project aims to save the world's eight pangolin species by generating data to inform conservation strategies and implementing wildlife crime prevention efforts in Central Africa. The team will use novel technology and artificial intelligence methods to address the illicit wildlife trade and prevent extinction.
A new study has identified the top factors that determine the success of large carnivore relocation efforts, highlighting the importance of protecting existing habitats. The findings could support global rewilding efforts and contribute to biodiversity conservation.
Researchers develop site-specific mitigation strategy for wind turbines, significantly reducing bat fatalities. The approach uses wind speed, temperature, and rainfall data to adapt curtailment strategies, resulting in a 86% reduction in bat deaths.
A team of scientists found a 16-year-old European hedgehog in Denmark, exceeding the previous record by seven years. The discovery contradicts previous studies suggesting that inbreeding reduces lifespan. The study's results provide valuable insights into the basic life history of hedgehogs and may improve conservation efforts.
Researchers found that primary cancer tumors have a sluggish conversion of nutrients to usable cellular energy, conserving energy for growth and metastasis. The discovery has vast implications for anti-cancer strategies, directing attention to slow energy metabolism.
A study by Chinese Academy of Sciences researchers found that group-living mammals live longer than solitary ones, with a 100-fold variation in longevity among species. The team identified 31 genes and pathways linked to both social organization and lifespan.
Biologists found songbirds can assess when predation risk from northern pygmy owls is highest and when there's safety in numbers. Mobbing behavior peaked in late summer and autumn when young birds are most vulnerable.
A new study predicts that by 2099, future extreme heatwaves will expose up to 11% of land vertebrates to temperatures beyond their historical levels. However, a low-emissions scenario greatly reduces animals' exposure to heat extremes.
Researchers from DePaul University studied small mammals in eastern Paraguay's Atlantic Forest remnants to understand biodiversity and its relation to forest edges. They found that species richness and abundance increase closer to the edge, while phylogenetic diversity is higher in interior sites.
Establishing ecological corridors among western US national parks can enlarge mammal populations and allow species to shift geographic ranges in response to climate change. This could increase the long-term persistence time of mammal species by a factor of 4.3, compared to fragmented individual parks.
A study by Colorado State University found that over 10% of adult female golden-mantled ground squirrels are killed annually along rural roads in the Gunnison Valley. The researchers suggest reducing personal vehicle numbers and using digital signs to alert drivers, as males are also vulnerable during mating season.
A rare fossil discovery provides new insights into the diet of Microraptor, a bird-like dinosaur with four wings. The find suggests that Microraptor was an opportunistic predator feeding on various species, including fish, birds, lizards, and small mammals.