Articles tagged with Aquatic Animals
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.
Comprehensive medical research, clinical studies, and healthcare sciences focused on disease prevention, diagnosis, and treatment. Encompasses clinical medicine, public health, pharmacology, epidemiology, medical specialties, disease mechanisms, therapeutic interventions, healthcare innovation, precision medicine, telemedicine, medical devices, drug development, clinical trials, patient care, mental health, nutrition science, health policy, and the application of medical science to improve human health, wellbeing, and quality of life across diverse populations.
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.
Practical application of scientific knowledge and engineering principles to solve real-world problems and develop innovative technologies. Encompasses all engineering disciplines, technology development, computer science, artificial intelligence, environmental sciences, agriculture, materials applications, energy systems, and industrial innovation. Bridges theoretical research with tangible solutions for infrastructure, manufacturing, computing, communications, transportation, construction, sustainable development, and emerging technologies that advance human capabilities, improve quality of life, and address societal challenges through scientific innovation and technological progress.
Study of the practice, culture, infrastructure, and social dimensions of science itself. Addresses how science is conducted, organized, communicated, and integrated into society. Encompasses research funding mechanisms, scientific publishing systems, peer review processes, academic ethics, science policy, research institutions, scientific collaboration networks, science education, career development, research programs, scientific methods, science communication, and the sociology of scientific discovery. Examines the human, institutional, and cultural aspects of scientific enterprise, knowledge production, and the translation of research into societal benefit.
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.
Researchers analyzed brain scans and behavioral tests of stranded sea lions to find correlations between brain damage and specific behavioral impairments. They discovered damage to the hippocampus, a key region for memory processes, and effects on interactions with other brain structures.
A team of researchers has discovered fossils of kinorhynch worms, also known as mud dragons, dating back over 530 million years. The historic find provides crucial insights into the evolution of body segmentation among animals.
Researchers used CRISPR-Cas9 to knock out six Hox genes in a sandhopper, shedding light on the genetic mechanisms that determine leg anatomy and evolutionary patterns. By analyzing the resulting transformations, they identified which genes control specific appendages and gained insights into how evolution shapes animal body plans.
A recent study by an international group of evolutionary biologists has convincingly refuted the proposition that comb jellies are the phylogenetically oldest extant metazoan group. Sponges are now reaffirmed as the first phylum to diverge from the common ancestor of metazoans, restoring the classical view of early animal evolution.
A rare fossil from eastern North America of a dog-sized horned dinosaur has been identified by a scientist at the University of Bath. The discovery highlights an east-west divide in North American dinosaur evolution, suggesting that dinosaurs in Appalachia evolved differently from those in western North America.
A recent study found that high concentrations of carbon dioxide deter even small invasive carp from entering areas with elevated CO2 levels. The gas causes stress and avoidance behavior in fish as young as eight days old, providing a non-physical barrier against the species.
Researchers have discovered a microscopic parasite in fish that's a close cousin to jellyfish, challenging current animal kingdom classifications. The study found that myxozoans, a group of parasites, are highly degenerated cnidarians, sharing essential genes with jellyfish.
Researchers sequenced acorn worm genomes to find similarities with human genes, establishing a distant connection. The study identified 8,600 shared gene families across deuterostomes, including humans, starfish, and frogs, suggesting a common ancestor that lived half a billion years ago.
Researchers at the University of Kansas sequenced the genomes of microscopic parasites known as myxozoans, revealing they are highly reduced cnidarians. The findings challenge traditional definitions of an animal and could have commercial implications for aquaculture.
Researchers found that ancient venomous groups evolve slowly under purifying selection, while recent lineages diversify rapidly under positive selection. This reveals a new theory of venom evolution, proposing a 'two-speed' mode where toxins expand and then are preserved through purifying selection.
A study published in Journal of Experimental Biology found that hair allows animals to both get dirty and remain dirt-free. The research team found that a honeybee has nearly 10 billion hairs, while the human head has just 100,000, making their true surface area 100 times greater than their skin surface area.
Researchers unveil two archaic aquatic carnivorous amphibian species from northeastern Brazil, shedding light on animal dispersal during the Permian period. The discoveries reveal a previously unknown geographic gap in knowledge about ancient life.
Researchers found that these animals move forward by sucking water towards them using low pressure, rather than pushing against it. This discovery has significant implications for our understanding of evolutionary adaptation, functional ecology, and bio-inspired design.
The Vindel River LIFE project restored tributaries by creating more diverse aquatic habitats through wider streams and boulders. This led to increased water levels and variable currents, benefiting migrating salmon and trout, as well as other animals and plants.
A new study reveals massive declines and extinctions of whales, fish, seabirds have damaged the planet's nutrient recycling system. This has weakened ecosystem health, fisheries, and agriculture.
Researchers find hydroxylated polybrominated diphenyl ethers (OH-BDEs) in San Francisco Bay, suggesting human activity enhances natural production. Elevated levels of OH-BDEs are linked to higher nutrients and water temperatures in populated areas.
A new study on plankton's jumping behavior shows that velocity is the primary factor determining whether an animal can break the water's surface. Only certain species of copepods with high impact speeds of around one meter per second can jump out of the water, suggesting they may be the smallest animals capable of this feat.
A new study suggests creating quiet marine zones to better understand the impact of human-generated noise on marine animals. The researchers mapped areas of high and low noise pollution in the oceans around Canada and found a correlation between noise levels and animal behavior.
Scientists have discovered a new species of the marine mammal group Desmostylia, which went extinct 23 million years ago. The new fossils reveal that desmos were unique in their diet and eating habits, using powerful muscles to suck vegetation from coastal bottoms.
Researchers at the University of Texas at Austin have created a new flame retardant made from polydopamine, a natural compound found in humans and animals. The nanocoating reduces fire intensity by 67% and is about 20% better than existing flame retardants.
Researchers found that sensory feedback shapes motor variability, allowing for normal behavior and adaptation. The study suggests maintaining variability is essential, contrary to the common view of it as a problem to overcome.
Researchers developed a novel data-logging tag called ITAG to study small invertebrates' behaviors and physiology. The tag measures ocean conditions and animal responses at high resolution, providing valuable insights into their natural behaviors and adaptations.
Copepods, tiny crustaceans that form the base of marine food webs, rely on omega-3s to survive. The new study found that copepods are resilient to short-term climate change but their long-term survival is threatened by reduced food supply.
A study published in Nature has identified nearly 1,000 common protein complexes shared by most kinds of animals, revealing deep evolutionary relationships. These findings have significant implications for understanding the genetic basis of diseases such as Alzheimer's, Parkinson's, and cancer across different species.
The world's first known mass extinction, which occurred around 540 million years ago, is now believed to have been caused by the emergence of complex animals capable of altering their environments. These 'ecosystem engineers' changed the planet in ways that made it difficult for earlier multicellular organisms like Ediacarans to survive.
Trichoplax, a multicellular marine animal without organs, exhibits complex feeding behavior involving external digestion of algae. The organism's cells coordinate a sequence of behaviors, including gliding and secretion of granules that break down the algae, indicating local control and cellular communication.
Researchers study tiny jellyfish's coordinated multiple jets propulsion system, which could inspire a natural solution for multi-engine organization in underwater-distributed propulsion vehicles. The jellies' ability to turn and maneuver with relatively simple components could lead to more efficient and redundant designs.
A study by UC San Diego biologists found that black bears in Yosemite National Park primarily forage on plants and nuts, with acorns and pine nuts being their main food sources. The research also suggests that female bears tend to forage more heavily for high-fat seeds during reproduction.
A new study reveals higher concentrations of methylmercury in Arctic species compared to lower trophic levels, suggesting increased toxicity and potential protective effects of selenium. The research confirms previous suggestions that biomagnification may be more pronounced in Arctic systems.
Researchers at Bielefeld University discovered that Antarctic fur seals have a unique 'scent profile' that enables them to identify their offspring and family members. This finding suggests that scent plays a crucial role in the animals' social behavior, particularly in recognizing kin and selecting mates.
Vertebrates show variation in species numbers among groups, with land animals exhibiting higher diversification rates, suggests a study by UA evolutionary biologist John Wiens. Habitat is likely a more important variable than climate or metabolic rate explaining species richness.
Marine species with wide-latitude ranges and high adult mobility are extending their territories fastest in response to climate change. This study provides new insights into how different traits impact marine animals' ability to adapt to warmer oceans.
A new study found that marine species with wide-ranging habitats and high adult mobility are best able to adapt to warmer waters, with fish exhibiting the largest range shifts. Meanwhile, small-ranged species are in increased jeopardy as oceans continue to warm.
Scientists have successfully collected plankton and animal larvae from the deep ocean using a new sampler, PlankZooka, which uses spinning blades to gently pump water through a net system. This allows for more precise sampling and analysis of deep-sea ecosystems.
New research reveals polar bears' metabolic rates remain high during summer ice melt, limiting their ability to conserve energy. The study suggests that as sea ice loss increases, polar bears are unable to adapt by entering a low-energy state, leaving them vulnerable to food shortages and reduced survival rates.
Researchers have mapped dolphin brain circuitry for the first time, revealing multiple areas associated with auditory information. The study used diffusion tensor imaging on preserved dolphin brains and found neural pathways similar to those of bats.
Researchers at National Oceanography Centre discovered that abyssal sea anemones can consume animals weighing up to six times their own weight, taking up to 80 hours to digest. The study used time-lapse photography and technology from UK's deepest diving robot-sub to observe behaviors.
Scientists discovered a single-celled plankton's 'eye' contains layers of mitochondria and plastids that resemble the lens, cornea, iris, and retina of multicellular eyes. The researchers found clues suggesting the structure may aid in detecting prey and communicating with other parts of the cell.
A new species of 'super-armoured' worm was identified by palaeontologists, featuring a unique defence mechanism and a distant ancestor of modern velvet worms. The creature had up to 72 sharp spikes covering its body, making it one of the earliest soft-bodied animals to develop armour for protection, 294
Satellites are now used to monitor coral reef health, providing near-real time data and long-term forecasts of tropical conditions. This information helps identify early warning signs of coral decline and loss due to natural and human-caused pressures.
Scientists identified a microscopic structure in worms called C. elegans as the first sensor of the Earth's magnetic field. This discovery sheds light on how animals like geese and sea turtles navigate using the magnetic field, which varies from spot to spot on Earth.
Advances in acoustic and satellite technologies are allowing researchers to track animals large and small across great distances. The paper highlights breakthroughs and discoveries brought about by hi-tech telemetry, enabling the day-to-day management of living marine resources.
Researchers discovered a novel self-repair mechanism in moon jellyfish, where injured animals regain symmetry through resymmetrization rather than tissue regeneration. This process relies on mechanical forces and viscoelastic properties of the jellyfish's body material to rebalance the unbalanced forces.
A new era in animal tracking is underway, with advancements in GPS tags and satellite technology allowing scientists to track animals in real-time. Researchers can now analyze health data, energy use, and brain waves, providing insights into complex interactions among animals.
Researchers studying blue whales in Chile have discovered that a female named 'Isabela' has traveled at least 5,000 kilometers from the Gulf of Corcovado to the Galapagos Islands, indicating a possible breeding ground. This journey represents the largest north-south migratory movement ever recorded for a Southern Hemisphere blue whale.
As warmer ocean temperatures speed up metabolic needs for oxygen, animals will struggle to find sufficient oxygen in lower-oxygen waters. This shift will result in marine habitats being displaced towards shallower, more oxygen-rich areas, with some species becoming oxygen-starved.
Researchers tracked tiger sharks traveling over 7,500 kilometers round-trip between the Caribbean and mid-North Atlantic annually. The study's findings have significant conservation implications for protecting these apex predators.
A new study reveals that ocean warming and oxygen loss will significantly impact marine life productivity, leading to a decline in species diversity. The researchers have developed a metabolic index to predict climate-related changes in geographic range and productivity for various species.
A recent study published in Science finds that warmer ocean temperatures will increase marine animals' demand for oxygen, while reducing its availability. As a result, habitats will shift away from the equator, displacing up to 26% of current ranges.
Researchers found that octopus skin can sense light changes without central nervous system input, using the same opsin proteins as its eyes. This allows for a response to brightness and color, enabling camouflage and communication. The discovery has implications for understanding cephalopod behavior and evolution.
Seagrass ecosystems rely on small marine invertebrates to graze algae, keeping habitats clean and healthy. A recent study found that diverse communities of these animals are essential for maintaining robust seagrass populations.
A recent study found that ectothermic animals have limited ability to acclimate to increasing temperatures, making them vulnerable to global warming. The research suggests that these animals will need to rely on behavioral or evolutionary changes to survive as temperatures rise.
Researchers have discovered two new species of bryozoans in Madeira, as well as a previously unknown species from Brazil. The study utilized modern techniques and electron microscopy to analyze rock samples collected at a depth of 11 meters, revealing six documented species and one endemic to Brazil.
Researchers discovered that many fish, amphibians, reptiles, and birds can naturally produce gadusol, a compound providing protection from ultraviolet sunlight. This ability may have been obtained through prehistoric genetic engineering, with the gene found in algae transferring it to vertebrate animals.
A study using fossils to predict extinction risk identifies vulnerable ocean ecosystems and species, providing a baseline for conservation efforts. The analysis finds that animals with small geographic ranges and certain groups are more prone to extinction, highlighting the need for targeted conservation and management.
A new study reveals that diverse sea creatures have evolved to swim with elongated fins using the same mechanical motion, maximizing speed and ensuring survival. The researchers found a consistent ratio of 20, known as the optimal specific wavelength (OSW), which is a key finding in understanding convergent evolution.
A new study reveals that biodiversity enhances multiple ecosystem functions, from soil nitrogen accumulation to aquatic algae control. This finding bolsters the importance of conserving biodiversity in maintaining healthy ecosystems.
Researchers used PET/CT scans to study the behavior of lugworms in sediment, revealing how they burrow and interact with their surroundings. This technique provides insights into the ecological models of benthic animals, highlighting the importance of understanding their activities for maintaining ocean health.
A team of scientists has identified a new species, Yawunik kootenayi, a marine creature with grasping appendages, from the Burgess Shale fossil deposit. The creature had versatile and complex frontal appendages that made it an important predator in its ecosystem.
Brazilian researchers have discovered five new species of marine invertebrates, the ascidians, which are rich in natural compounds with potential uses in medicine. The newly found species contain substances that can eliminate cancer cells but also destroy healthy cells.