Research highlights biodiversity's crucial link to micronutrient-rich seafood diets, essential in combating 'hidden hunger' and meeting UN Sustainable Development Goals. Preserving aquatic ecosystem biodiversity locally and globally is vital to fulfill nutritional requirements.
Sea urchin larvae use light to control digestion by opening and closing the pylorus, a critical component of the digestive tract. This finding suggests that early brain functions may have included regulating digestion, providing insights into animal evolution.
A study of over 10,000 papers reveals significant impacts of human sounds on marine mammals, fish, and invertebrates, disrupting behaviors such as communication, foraging, and navigation. Researchers suggest solutions like reducing shipping speeds, quieter propellers, and floating wind turbines to alleviate anthropogenic noise.
A new analysis found that only 84 of the 408 farmed species had available scientific studies on their welfare, while the majority lacked information. The researchers warn that aquaculture's expansion poses great risks to individual animal lives due to insufficient knowledge.
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A new study has found evidence of sophisticated breathing organs in 450-million-year-old trilobites, revealing they breathed oxygen and had structures resembling gills on their thighs. This discovery helps piece together early animal evolution and situates trilobites between older arthropods and crustaceans.
A proof-of-concept study shows that animal DNA can be collected from air samples, enabling new ecological and health assessments. The technique has potential applications in forensics, anthropology, and even medicine, such as understanding airborne diseases like Covid-19.
A new cyanobacterial neurotoxin called aetokthonotoxin has been identified as the cause of vacuolar myelinopathy in waterbirds and raptors, with exposure to bromide-enriched invasive water plants playing a key role. Bioaccumulation of the toxin affects not only the birds that eat the contaminated plants but also their predators.
Research finds that global awareness of biodiversity is growing, but its value is poorly measured. The Species Awareness Index tracked changes in Wikipedia page views from 2015 to 2020, revealing faster increases for certain species like reptiles and the long-tailed tit.
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Marine animals including green sea turtles, sharks, and penguins exhibit similar circling movements at constant speeds, defying efficiency. This behavior may aid navigation or detection of magnetic fields.
A new study builds a multilayered computer model of marine life's history over the last 500 million years, echoing J. John Sepkoski's work on sudden mass extinctions. The analysis reveals a fourth major evolutionary fauna driven by biological interactions between predators and prey.
In a groundbreaking study, cuttlefish are found to exhibit self-control by delaying gratification, similar to humans and primates. The creatures can wait for up to 50-130 seconds before accepting a better reward, showcasing their ability to exert control over their desires.
A new study reveals that global warming can reduce energy transfer in plankton food webs by up to 56%, threatening the survival of larger animals. Warmer temperatures cause metabolic rates to accelerate faster than growth rates, leading to less efficient energy flow and reduced biomass.
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A new study reconstructs the ancient habitat of early dinosaurs in the UK around 200 million years ago. The research reveals that small dinosaurs and lizard-like animals coexisted on flooded tropical islands, contradicting previous assumptions about their desert habitats.
Researchers found that amphipod claws snap at nearly 100 km/h, accelerating to over 30 meters per second. This unique adaptation could inspire human engineering for fast-repeated movement.
Researchers successfully extracted DNA from marine shells, revealing insights into the genetics of animal shrinking. The technique sheds light on how animals like lemurs and lizards adapt to human hunting pressure.
A recent study in Frontiers in Marine Science reveals the existence of stationary animals attached to a boulder on the sea floor beneath Antarctica's ice shelves. The discovery raises more questions than answers, such as how they got there and what they're eating.
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A recent review of over 300 studies found that cancer is linked to pollution in around 30 aquatic species, including skin and liver cancers. The study highlights the need for further research on the effects of chronic low-to-medium level exposure to oncogenic pollutants on wild animal health.
A recent study by Monterey Bay Aquarium reveals that juvenile white sharks are being forced to migrate northward due to a loss of suitable thermal habitat caused by climate change. The researchers analyzed electronic data records from tags deployed on the sharks and compared them to ocean temperatures to map the cold edge of their ther...
A tiny amphipod has been found to snap its claw shut 10,000 times faster than the blink of an eye, thanks to its small size and aquatic environment. This unique movement is repeatable, making it a significant challenge for engineering.
Researchers mapped regions with high numbers of undersized fish and crustaceans, which are typically discarded due to size limits. This helps identify areas for fishing restrictions to ensure more sustainable fisheries and conservation efforts.
A global team of researchers found overwhelming evidence that human-made noise impacts marine life from invertebrates to whales, disrupting behavior, physiology, reproduction, and causing mortality. They identify actions to restore healthy ocean sounds and reduce noise levels in the shipping industry.
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Researchers found surface slicks to be critical nurseries for commercially and ecologically important fish species, containing 39% of the study area's larval fish and 75% of its organic debris. The diversities of fishes in slicks represent nearly 10% of all recorded fish species in Hawai'i.
A global study shows that human disturbances, such as hunting and recreation, trigger significant changes in animal movement, forcing species to travel 35% more or less than usual. This widespread impact threatens biodiversity and ecosystem processes, highlighting the need for conservation efforts.
Researchers from the University of Cambridge have discovered a fossil of the earliest starfish-like animal, Cantabrigiaster fezouataensis, which has features in common with both sea lilies and modern-day starfish. The exceptionally preserved fossil is a missing link for scientists trying to piece together its early evolutionary history.
A new study reveals that California's coastal gillnet fisheries took a greater toll on harbor porpoises than previously thought, with the population recovering dramatically since their ban. The Morro Bay stock has rebounded by seven-fold, from an estimated 570 animals in 1991 to approximately 4,200 porpoises today.
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Researchers found that haemoglobins in diverse species, including humans, molluscs and crustaceans, originate from a single ancestral gene. This discovery suggests that the appearance of haemoglobin in these species was not an independent invention but rather a result of evolutionary inheritance.
A remarkably preserved 57,000-year-old wolf pup named Zhùr has been uncovered in the Yukon, offering a unique window into the lives of ancient wolves. The mummy's genome analysis revealed that she was descended from wolves from Russia and Siberia, and her diet consisted mainly of aquatic resources like salmon.
A University of Birmingham team used Daphnia to test the effects of Roundup on keystone species. They found significant harm to animals' metabolism and gut function, even at approved regulatory levels. The results offer a starting point for tracking herbicide impacts across different species.
A new genus and species of ichthyosaur, Thalassodraco etchesi, has been discovered in the UK, measuring 2m in length and dating back to the Late Jurassic period. The specimen was found buried head-first in limestone, preserving its soft tissues and providing valuable insights into the biology of these marine reptiles.
Researchers found that sea urchins are more affected by low oxygen levels than ocean acidification when exposed to high temperatures. The study revealed that severe heat, hypoxia, and acidity do not have a synergistic effect on the urchins' performance.
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A well-preserved specimen of a new ichthyosaur species, Thalassodraco etchesi, has been identified from the Late Jurassic period in England. The creature may have been capable of diving very deeply due to its deep rib cage and large eyes.
Scientists track animal activity levels using new satellite technology, providing insights into their responses to environmental changes. The study's findings open up new research opportunities for understanding climate change impacts on marine species.
Researchers at MBL found that small marine animals with multiple propulsers create negative pressure behind them to propel forward. This phenomenon, dubbed 'suction thrust,' is common among animals with metachronal kinematics.
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A new study reveals that dolphins adjust their heart rate to suit the length of their planned dive, conserving oxygen and avoiding decompression sickness. This conscious adjustment allows them to safely dive for long periods, providing insights into marine mammal physiology.
A new genus and species of Loricifera have been discovered in Japan's deep sea, improving the understanding of the species' diversity. The discovery was made by researchers from Tohoku University, who found the species inhabiting areas between 177m to 1059m below the sea.
Researchers find molecular fossils extracted from 635-million-year-old rocks are not the earliest evidence of animals, but rather common algae. The discovery sheds light on the origin of animal ancestors and their abundance in ancient oceans.
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A study by researchers at the University of Notre Dame found that global warming is likely to increase disease risk in animals, particularly those living in colder climates. The thermal mismatch hypothesis suggests that pathogens thrive in warmer temperatures, while cold-adapted animals struggle to cope with rising temperatures.
Researchers used CT scanning and 3D printing to study a 370-million-year-old chondrichthyan from Morocco. They discovered that the ancient shark's lower jaw was not fused in the middle, allowing it to rotate outwards when opening its mouth, bringing larger teeth into an upright position.
A study analyzing snailfish and amphipods from deep-sea trenches found high mercury concentrations, suggesting human activity contributes to ocean pollution. Mercury accumulates in fish consumed by humans, posing a health risk.
A new ecological dataset, AAMA, combines decades-long animal tracking studies across the Arctic to understand rapid climate changes. The open-source archive identifies early signs of local or Arctic-wide changes in animal behavior and biology due to ongoing climate change.
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A Tel Aviv University study compared disposable dishes made of regular plastic and bioplastic, finding that both had a similar detrimental effect on marine animals. Bioplastics do not degrade rapidly in the marine environment, releasing toxins and harming marine life.
A new study reveals that decaying jellyfish blooms fuel the rapid growth of specific strains of seawater bacteria, keeping organic material within the water column food web. This process temporarily alters the food web, with bacteria consuming detritus and providing food for other marine animals.
Researchers at Harvard University discovered a unique sensor system in octopus suction cups that allows them to detect and 'taste' molecules on objects, enabling the animals to identify prey. This novel chemotactile receptor system may also facilitate complex behaviors in octopuses and other cephalopods.
Researchers found that in fights resolved by judges' decisions, winners tended to fight more vigorously than losers. Conversely, fighting skills were essential for winning in fights determined by knockout or technical knockout. The study suggests that the rate of attack is a dominant factor in determining success in combat sports.
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A new study maps the appetites of coastal predators, showing that rising temperatures can shape entire communities of predators and alter biodiversity. The global 'BiteMap' was created using handmade squid baits called 'squid pops,' which were used to entice fish and crabs to reveal their feeding patterns.
A newly discovered gene in pyrosomes, an underwater colony of tiny animals, is believed to produce the organism's bioluminescence. The gene matches one used in biotechnology and has been found in other organisms that also glow.
A new study reconstructs pre-Columbian diets in the Brazilian Amazon, revealing that terrestrial plants and animals were main sources of caloric intake. Fish was not the primary source of protein, contradicting previous assumptions.
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Researchers found that wild red abalone mothers provide their offspring with an energy boost from yolk lipids, making them more tolerant of ocean acidification. However, fast-growing farmed abalone are more susceptible to dying under the same conditions.
A meta-analysis of over 100 animal species found that hunger during development increases risk-taking behavior in later life. The study suggests a correlation between poor nutrition and increased willingness to take risks, which may also apply to humans.
Researchers modelled the changing ecologies of fossil reptiles in Mesozoic oceans, discovering six ecological categories that linked movement, habitat, and feeding styles. The study shows that these marine reptiles avoided competition with each other, with some groups conserving their ecological roles over time.
A recent study found that animals quickly lose their antipredator behaviors after interacting with humans, with domestication leading to the fastest changes. This loss can have significant implications for conservation and urban planning.
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New research reveals that marine animals generally inhabit the maximum range of breathable ocean zones determined by their physiology and oxygen needs. The study warns that climate change will restrict these ranges as warmer waters harbor less oxygen, potentially leading to habitat shifts or oxygen shortages.
Researchers propose a hypothesis that animals use magnetotactic bacteria in a symbiotic relationship to gain a magnetic sense, which could improve human navigation and inform ecological research. The study found evidence of magnetotactic bacteria associated with various animal species, including sea turtles, birds, and mammals.
Researchers study fluid physics of marine snail movement, revealing distinct swimming patterns and shell shapes. The study could lead to the development of more efficient underwater vehicles.
A study of over 2,000 species reveals that common animal populations are rising and falling at a rate similar to rare species due to global change. Amphibians, however, experienced declines, while birds, mammals, and reptiles showed increases.
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Researchers from the University of Queensland have found that 'dead' coral rubble supports more animals than live coral, revealing a new understanding of these often-overlooked habitats. The discovery highlights the importance of biodiversity in these areas, which are dominated by tiny invertebrates and microorganisms.
Researchers at Stellenbosch University and the University of Plymouth have successfully used unique signature whistles of individual bottlenose dolphins off Namibia's coast to estimate population size and track movement. The method, which marks a first for acoustic monitoring, yielded promising results and has potential applications fo...
Researchers successfully estimated the size of bottlenose dolphin populations using unique signature whistles, with results matching traditional photographic mark-recapture methods. The technique has potential applications in tracking other species, including endangered humpback dolphins.
A new species of marine animal, Gyaltsenglossus senis, has provided direct fossil evidence connecting the two major groups of hemichordates. The discovery sheds light on the evolutionary relationship between enteropneusta and pterobranchia, two groups that appear to be quite different but are closely related.
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The discovery of a fossilized ichthyosaur with a smaller marine reptile in its stomach provides direct evidence of megapredation during the Triassic period. The prey was likely a thalattosaur, a group of marine reptiles that were more lizard-like in appearance than ichthyosaurs.