Articles tagged with Marine Life
Researchers found that deep-sea octopus gather at the Octopus Garden to mate and nest, with warmer waters accelerating egg development and reducing incubation time. The shorter brooding period boosts reproductive success and increases offspring survival rates.
A team of scientists has discovered extremely rare 160-million-year-old sea spider fossils in Southern France that are closely related to living species, providing new insights into their evolution. The findings suggest that the diversity of sea spiders had already started to form by the Jurassic period.
A new study identifies over 800 bivalve species that humans harvest and find to be more resilient to extinction due to their adaptability in various climates. The researchers highlight the need for sustainable management to preserve these populations, but also warn of potential risks if human demand exceeds their capacity.
A new study reveals that trumpetfish can conceal themselves by swimming closely behind another fish while hunting, reducing the likelihood of detection. This unique strategy, known as 'shadowing', uses a non-threatening species of fish as camouflage to approach prey.
A new study reveals how Aulacopleura, an ancient sea-dwelling trilobite, developed variable mid-section segments to tolerate dips in local oxygen levels. This adaptation allowed the species to thrive despite being preyed upon by larger predators.
A chemical process used by cooks to create flavors and aromas is believed to have helped create conditions for complex life to evolve on Earth. The Maillard reaction, also known as the browning of food, converts small molecules into larger ones that are harder for microorganisms to break down.
A study found that the silver rice rat, an endangered Florida Keys species, shifted its habitat in response to sea level rise, moving to higher ground at a rate slightly greater than the observed rise in sea level. The rats' diet and environment are highly restricted, making them sensitive to changes.
Researchers are exploring the Pacific Northwest using ROVs to locate ghost shark nesting grounds and study their developmental processes. They hope to find embryos to learn about the unique morphologies of these fish.,
Researchers found that filter-feeding basking sharks keep their core regions warmer than the water, like fast-swimming apex predators. This discovery has implications for conservation and raises ecological questions about metabolism and distribution shifts during climate change.
Two species of hairworms are missing genes responsible for producing cilia, a feature present in all other known animals. This loss likely occurred early in the evolution of the group and may impact their parasitic behavior, but its exact effects remain unclear.
A study by University of Copenhagen researchers challenges a 70-year-old assumption about the origins of life on Earth. They found that oxygen concentrations in ancient ocean samples were 5-10 times lower than today, contradicting previous theories that increased oxygen levels drove the evolution of more complex marine organisms.
The Save Our Seas Foundation's World of Sharks website now features interactive 3D models of white sharks and manta rays, enabling users to explore shark physiology and evolution in an engaging way. The 3D models are open-access and free to view and download for non-profit use.
An international team of scientists found that sea snakes have enhanced their colour vision due to living in brighter marine environments. The species has four intact copies of the opsin gene SWS1, allowing them to see a wider range of colors.
A new study reveals that Megalodon, the iconic extinct shark, was not as fast as believed but had a mega-appetite that explained its gigantism. The discovery of tiny scales found in rock pieces surrounding fossil teeth suggests that Megalodon used its warm-bloodedness to promote visceral food processing and absorb nutrients.
Researchers developed a novel method for underwater geolocalization using deep neural networks trained on 10 million polarization-sensitive images. The technology enables tethered-free navigation and has the potential to improve location accuracy, enabling in situ autonomous sampling robots to monitor water properties.
Researchers used coastal surveys from 1993-2021 to find a dramatic delayed effect of warmer oceans on seabird mortality. Massive die-offs occurred roughly once per decade, with five events exceeding a quarter million birds between 2014 and 2019.
A study examines over 20,000 newspaper articles from Brazil to understand changes in marine biodiversity over the past 180 years. The research found that high-trophic level species decreased in frequency while low-level organisms increased, reflecting broader trends of overfishing.
A new study reveals the Mediterranean as the area most at risk globally for endangered seabirds, with areas like Portugal's Exclusive Economic Zone also showing considerable risk. Seabirds are already vulnerable or endangered, and plastic exposure worsens their fragile state.
A study has revealed that a quarter of all plastics potentially encountered by petrel species are in remote international waters, posing a significant threat to their survival. The research highlights the need for international cooperation to address plastic pollution in the world's oceans.
A new hedging strategy for coral restoration balances species diversity and ecosystem benefits by selecting key species that maintain critical functions. The approach considers a range of local species and ecological characteristics to ensure the most effective restoration outcomes.
A study published in Science Advances discovered that talitrids, a group of small crustaceans, independently colonized mountain habitats four times during the Oligocene and Miocene periods. Genetic adaptations allowed them to survive in colder environments and establish themselves in diverse habitats worldwide.
Researchers observed a steady increase in skin disease among southern resident killer whales from 2004 to 2016. The study suggests that the most plausible explanation is an infectious agent, potentially reflecting a decrease in immune system ability to combat disease. This could pose a significant threat to the health of the population.
Fossil evidence confirms that long-necked marine reptiles like Tanystropheus were vulnerable to predation. Researchers found bite marks on two specimens with severed necks, suggesting they were decapitated during a violent event.
New research from the University of Manchester reveals that areas rich in marine life are significantly impacting our ecosystems and climate. The study found that urea, a nitrogen-rich compound, is being transported over long distances through the atmosphere to benefit nutrient-deficient environments.
Researchers are investigating methods to extract critical materials, including lithium for electric vehicle batteries and magnets for electric motors, from diverse water streams. By accelerating evaporation through porous photothermal materials, they aim to reduce energy intensity and improve supply chain security.
Research found that microplastics can increase sand temperature, potentially altering sea turtle sex ratios and hatchling success. Concentrations of up to 30% microplastic had the greatest impact, with temperatures rising by 0.58 degrees Celsius.
A new study using CRISPR/Cas9 technology has identified a critical gene, SLC4γ, required for young coral colonies to build their skeletons. This gene is unique to stony corals and may have evolved to support skeleton formation.
The Clarion-Clipperton Zone is home to an estimated 5,578 different species, with 88-92% of them entirely new to science. Researchers have discovered a variety of unique species, including sea cucumbers, nematodes, and sponges.
A study published in PLOS Biology found that polar fish reproduce later and produce more eggs than tropical fish, confirming model predictions. As a result, polar fishes tend to produce more eggs than tropical fishes.
A new study finds that popular compostable plastics like PLA don't biodegrade in marine environments, instead persisting unchanged. The research highlights the need for standardizing tests to see if materials promoted as compostable or biodegradable actually break down in natural environments.
Researchers discovered Vibrio pathogens can stick to microplastics, adapting to plastic, and have aggressive behavior, forming biofilms and causing infections. The study highlights the risks of Sargassum-plastic marine debris interactions, with potential for opportunistic pathogens and disease transmission.
Scientists have discovered weak, fossilised sediments beneath the seafloor of Antarctica's eastern Ross Sea, which led to massive underwater landslides. These layers made the area susceptible to failure due to past climate change.
Researchers developed an AI-powered tool to identify and measure coral reef halos globally, providing a new method for monitoring ecosystem health. The tool enables efficient tracking of reef ecosystems' function at large scales, improving understanding and management of coral reefs.
Researchers discovered that scalloped hammerhead sharks close their gill slits during deep dives to prevent heat loss and keep warm. This unique behavior allows them to hunt effectively in cold water depths.
A study found that certain pteropod species in the Southern Ocean are vulnerable to climate change due to varying life cycles. The research suggests that population stability is essential for species survival and that prolonged exposure to unfavorable conditions may jeopardize future populations.
A Bangor University paper quantifies the carbon benefits of ending bottom trawling, finding only a small fraction of seabed carbon reacts to disturbance. The study challenges the validity of previous claims and suggests using 'carbon credits' for banning trawling may actually increase overall CO2 emissions.
Researchers discovered that Obamus coronatus, a half-inch long Ediacaran animal, preferred to live on specific parts of the sea floor in the company of other Obamus. This finding shows that even without modern descendants, ancient animals could exhibit sophisticated behavior and habitat selection.
Researchers used computer modeling to simulate the movement of lightweight plastic particles in the Mediterranean Sea. Their results suggest that these particles can drift up to 175 miles laterally from their point of origin before sinking. This discovery highlights the potential for long-distance interactions between plastic waste and...
A community science survey reveals an abundance of floating sea creatures in the North Pacific Garbage Patch, including jellyfish, snails, and crustaceans. The study found a positive correlation between plastic waste and three groups of sea creatures, highlighting the complex relationships within this ecosystem.
Scientists have used sub-surface imaging and aerial surveys to uncover the Red Lily Lagoon area in West Arnhem Land, revealing significant implications for understanding the First Australians. The study provides a new way to understand the rock art in the region, which is recognized globally for its significance and distinctive style.
Researchers have sequenced the genomes of Leatherback and Green sea turtles, revealing similarities in their immune systems and evolution. The study provides clues for understanding fibropapillomatosis, a cancer affecting these species, and informs conservation efforts.
Researchers found high levels of coral pathogens in fish that graze on algae and detritus, while those that eat coral had beneficial bacteria in their feces. These findings suggest that corallivore feces could act as a 'coral probiotic,' potentially benefiting coral reefs.
Researchers found that golden fossils from Germany's Posidonia shale are primarily made up of phosphate minerals, hinting at the presence of oxygen in the environment. The discovery suggests that oxygen played a crucial role in driving chemical reactions needed for fossilization.
A multidisciplinary team discovers three new active hydrothermal vent fields over a 434-mile stretch of the Mid-Atlantic Ridge, revealing rich biological communities and vast marine life. The discovery highlights the need for more research to understand the effects of deep-sea mining on these unique ecosystems.
Researchers found fish and bottlenose dolphins react differently to life in noisy shipping corridor of Charleston Harbor Estuary. Fish calls and choruses decreased with increasing anthropogenic noise, while dolphins ramped up their vocalizations. This study highlights the impact of human activities on marine wildlife.
A study found that more than 70% of Chinook populations have declined over the last 50 years, but some populations are recovering due to their diverse migration and spawning strategies. Cold water and marine habitats play a key role in their success, particularly for fall and summer stocks.
Researchers used unique stripe configurations to identify individual octopuses over time, enabling long-term studies. The findings provide insights into the behavior and ecology of this species.
Researchers at Rutgers University have sequenced the complete DNA sequence of the little skate, identifying key genes responsible for its distinctive wing-like pectoral fins. The study reveals extensive rearrangements in fin formation genes and conservation of chromosomal identity across cartilaginous fish.
Researchers Pawel Burkhardt and Fred Wolf will study the simple nervous system of marine organisms to understand brain evolution. The project aims to reveal the neural network of ctenophores, a predator with an alien-like brain.
A recent study found that ocean warming triggers dinoRNAV infections in coral colonies, intensified in unhealthy colonies. This is the first empirical evidence of reef-wide dynamics of viruses infecting coral symbionts during heat waves.
A team of researchers from South Africa has discovered exceptional trace fossils that provide insight into the locomotion of ancient giant amphibians. The fossils, found on a rock surface once part of a tidal flat or lagoon, suggest these animals propelled themselves through water with continuous side-to-side tail motions.
A rare strain of Toxoplasma has been found in California sea otters, killing them with severe inflammation and potentially threatening other marine life. The COUG strain was first detected in Canadian mountain lions, and its impact on humans and other animals is unknown.
A recent study has identified a rare strain of Toxoplasma gondii, COUG, in sea otters that caused fatal steatitis and toxoplasmosis. The strain is virulent and can rapidly kill healthy adult otters, posing a health threat to other marine wildlife and humans.
A new study finds that supernovae have a persistent influence on marine life's biodiversity, with variations in nearby exploding stars closely following changes in marine genera. Supernovae may regulate climate through cosmic rays, influencing nutrient transport and primary bioproductivity.
The Minderoo-Monaco Commission on Plastics and Human Health issues a sweeping new report highlighting the far-reaching health hazards of plastics across their life cycle. The report examines the economic, health, environmental, and social costs associated with plastics from extraction to end states.
Human activities are causing rapid changes to the ocean soundscape, harming invertebrates through cellular and ecosystem-level impacts. The study highlights the sensitivity of various invertebrates to underwater sound and emphasizes the need for urgent research and mitigation strategies.
Researchers identify egg yolk proteins retained in viviparous sharks and rays, which may provide nutrition to developing embryos. The study suggests that these proteins have evolved a new function in cartilaginous fishes, potentially facilitating the transition from egg-laying to live birth.
A new study led by Florida State University researchers found that plants and small organisms in Arctic rivers contribute significantly to carbon export, accounting for 40-60% of particulate organic matter flowing into the ocean. This discovery highlights the importance of rivers as a crucial component of the modern carbon cycle.
A new study by Monterey Bay Aquarium reveals the key components contributing to successful releases of orphaned southern sea otters back into the wild. The research emphasizes the strong maternal drive of surrogate female sea otters in nurturing and caring for pups, resulting in a three-quarters success rate.
Researchers discovered a new species of bacteria, Sulfurimonas pluma, living in cold, oxygen-saturated hydrothermal plumes globally. The microorganism uses hydrogen as an energy source, contrary to previous assumptions and expanding our understanding of its ecological role.