Articles tagged with Predators
Scientists tracked brain activity of schooling glassfish to uncover how animals detect social partners' actions, allowing groups to escape danger. The study found that social behavior is crucial for coordinated escape, with groups responding more effectively to threats than individual fish.
A new study successfully uses audio deterrents to alert golden eagles to wind turbines, reducing collisions and deaths by over 50% at two wind farms in the Western USA. The system, called DTBird, emits warning sounds to attract the birds' attention and discourages closer approaches.
A GPS tracking study found that invasive barred owls consistently occupy the tallest, oldest, and most complex stands of forest, threatening spotted owls' habitats. Managing barred owl populations reopens habitat for spotted owls to reclaim, conservatively estimating over 1,800 square kilometers of restored habitat.
A study found that coating developing raven eggs with non-toxic mineral oil helps protect sensitive prey populations. Raven nests treated with egg oil showed more than doubled sage-grouse nest survival and a 44% increase in relative abundances of sage-grouse.
A team of researchers found that asynchronous species fluctuations within herbivore communities play a central role in stabilizing trophic communities. Herbivore asynchrony acts as a biological buffer between plant and predator communities, mediating resource supply to predators.
Researchers found that horses' heart rates increased when viewing wolves, regardless of behavior, while keeping a poker face and not displaying overt behaviors. The study's findings have implications for horse welfare and rider safety, as horses may be experiencing internal agitation without physical signs.
Two studies found that California gray wolves primarily eat cattle, with 72% of scat samples containing cattle DNA. Elevated cortisol levels in cattle grazing near wolf packs also indicate chronic stress, affecting their physiology and potentially production rates.
A new video game, 'Run FoVE your life,' simulates high-intensity movement dynamics and energetics of cheetah chases, incorporating real movement data from human athletes in chase-tag games. The game aims to further understanding of fatigue and movement decision-making in life-or-death encounters.
A study on coyote attacks in Stanley Park revealed that habituation and food conditioning contribute to aggressive behavior. To coexist with coyotes, people should not feed them, avoid approaching them, and be aware of their presence during certain times and locations.
Researchers developed a machine learning framework to detect and classify shell-crushing sounds, enabling the quantification of predator impacts on mollusk populations. The system uses multi-step approaches and demonstrates strong performance in controlled tank conditions and field settings.
Research by Cheryl Dykstra and her team found a correlation between higher quality territories and the proportion of female nestlings. The study also revealed that solitary young are more likely to be female than male, with eggs laid later in the season increasing the probability of hatching into a male.
A study by Kyoto University researchers found that the bright orange tail of tadpoles serves as a lure to distract predators, allowing them to avoid more vulnerable parts of their body. The team observed that dragonfly nymphs were more likely to attack the tails than other body parts.
A new study reveals that protecting polar bear habitat naturally safeguards the resources they rely on to survive, providing critical benefits to the ecosystem. By analyzing tracking data from 355 bears, researchers identified a high-use area near Cape Churchill, Manitoba, highlighting it as a prime location for a Marine Protected Area.
A study published in the Journal of Experimental Marine Biology and Ecology found that exposure to oleamide, a chemical additive in plastics, caused immediate changes in octopus prey choice and interactions with predators. The effects persisted for at least three days, suggesting a lasting impact on marine behavior and ecosystem dynamics.
In 2025, global unprovoked shark bites returned to near-average levels, with a significant decrease in the United States. The country accounted for 38% of worldwide incidents, down from over 50% in recent years. Australia followed closely, with 32% of global bites and 56% of fatalities.
A new study analyzing three decades of research found that animals respond more consistently to lethal humans than non-lethal ones, altering behavior in foraging, vigilance, and movement. Non-lethal human structures can even function as perceived refuges, reducing animal vigilance.
A new study reveals that more than 7,000 adult Magellanic penguins were killed by pumas in just four years, posing a significant threat to the penguin population. The research suggests that high puma predation rates could exacerbate reproductive decline and juvenile mortality, ultimately putting the colony at risk of extinction.
A new study reveals that seasonal seabird nesting concentrates tiger sharks in specific areas, forcing other species to shift their habitat use to avoid predation. The presence of fledgling seabirds influences the behavior of apex predators, including gray reef and Galapagos sharks.
Researchers discovered that locusts regurgitate to repel ant attacks, and the mixture of diethyl glutarate, 3-methylindole, and 2-(formylamino)benzoic acid stimulates ant gustation, leading to aversion
A study by Kobe University ecologist Shinji Sugiura reveals that adult pond frogs actively attack and consume hornet workers despite being stung repeatedly. The frogs showed no noticeable harm from the venomous stings, making them a unique model organism for studying mechanisms underlying venom tolerance.
The discovery sheds light on marine ecosystems' rapid recovery and complexification after the end-Permian mass extinction. The Spitsbergen fossil deposit reveals diverse marine reptiles, including archosauromorphs and ichthyosaurs, with some species reaching 5m in length.
A newly discovered carnivorous lizard, Tainrakuasuchus bellator, lived 240 million years ago and resembled a dinosaur due to its armour-plated body. The species was among the top predators of its time in Brazil during the Triassic Period.
Research by Kobe University entomologist SAGA Tatsuya found that two hornet species divide their prey by specializing on different targets. The Japanese yellow hornet eats soft-bodied prey like crickets and moths, while the yellow-vented hornet consumes low-value prey such as beetles and wasps.
Researchers equipped miniature backpacks with fringe-lipped bats, revealing they hunt large prey like frogs, birds, and small mammals with remarkable success. The study found these small bats conserve energy by spending 89% of their time stationary and striking quickly, succeeding in about 50% of hunts.
A team of researchers has shed light on how Europe's largest bat hunts and consumes small birds. The bats use loud and low-frequency ultrasound echolocation calls to detect prey at great distances, then pursue it in steep dives towards the ground, catching and eating birds in mid-air.
A study by the University of Göttingen found that social pressure is the primary driver behind farmers' willingness to protect their livestock from wolves. Financial support, such as subsidies for electric fences, also encourages farmers to take action. However, guard dogs are not a preferred option.
A new study finds that sargassum seaweed can significantly slow down sea turtle hatchlings in Florida, increasing their risk of predation and heat exposure. Researchers found that even small amounts of sargassum can impede hatchlings' progress, with leatherbacks taking 54% longer to crawl through light sargassum.
A recent study found that wolf hunting has a limited effect on reducing livestock losses, with an average reduction of 2% in predation rates. However, the impact of hunting on lethal removals, which are expensive operations targeting specific wolves, is negligible.
Researchers at Kyoto University discovered that crested serpent eagles possess a unique genetic mutation allowing them to resist the toxins of invasive cane toads. The eagle's toxin resistance is attributed to the same amino acid sequence as the Siamese red-necked keelback snake.
Researchers developed a new framework to compare 15 different mitigation measures on the Gold Coast, revealing that a combination of strategies is most effective at reducing shark bites. The study found that non-lethal real-time shark alerts and traditional strategies like SMART drumlines are key to reducing risk.
Researchers at UNICAMP found that a reduction in prey availability was a decisive factor in the extinction of saber-toothed tigers. The study also shows that an increase in predator diversity led to a decline in herbivore species diversity among antilocaprids, which are now represented by a single species: the American bison.
A new analytical method reveals overlooked species at risk of extinction, providing a valuable layer of insight for conservationists. The dual-role approach captures both predator and prey interactions, identifying keystone species and vulnerabilities.
Researchers used anonymized GPS data from smartphones to monitor how wildlife reacts to people, highlighting the potential of human mobility data in tracking human-wildlife conflicts. The study's findings can inform conservation planning, help protect animals and wild spaces, and ensure that recreational activities are done responsibly.
A study led by Monterey Bay Aquarium shows that the collapse of one marine predator can benefit another. Sea otters thrive in response to increased availability of mussels after a mussel boom is triggered by the loss of ochre sea stars, demonstrating keystone interdependence.
Marine turtles' shells exhibit complex trade-offs between toughness, stiffness and flexibility to protect against predators while optimizing movement. The shell's design accommodates demands of both survival and efficient locomotion in aquatic habitats.
A research team has identified a previously unknown defense mechanism in Pseudomonas syringae, enabling the bacterium to produce chemical compounds that attract amoebae, which are then killed by toxic substances produced by the bacteria. This 'chemical radar' system also helps the bacteria infect plants in the presence of predators.
A recent study published in the ICES Journal of Marine Science reveals that bigeye tuna, yellowfin tuna, and swordfish source between 50-60% of their diet from the twilight zone. This suggests that any changes to the twilight zone's food web could have profound implications for these fisheries.
Researchers at the University of Bristol discovered that cuttlefish employ a novel form of motion camouflage by displaying dark stripes on their head and arms. This allows them to disguise their hunting movements and deceive their prey's visual system, overwhelming it with strong dynamic motion cues.
Antarctic krill exhibit sudden changes in behavior when exposed to the water-borne smell of penguin poo, showing increased speed, turns, and reduced foraging efficiency. This 'zigzagging' is an avoidance reaction that may increase their odds of survival in a swarm.
A study published in Arthropod-Plant Interactions found that spined soldier bugs and Carolina praying mantises are effective in controlling spotted lanternfly populations. The research suggests conserving these natural predators could provide a sustainable approach to managing the invasive pest.
A new study from Colorado State University found that fortified corrals can reduce livestock losses due to predator attacks on nearby carnivores. The study demonstrated a beneficial spillover effect where households neighboring those with chain-link corrals also reported fewer attacks on their livestock.
Researchers used a novel approach to estimate megalodon's body length and shape, finding it closer in shape to a lemon shark or large whale. The study suggests the prehistoric predator may have reached about 80 feet in length and weighed an estimated 94 tons.
A study of Asian hornets found over 1,400 different species in their guts, including a wide range of bees, wasps, and insects. The diet varied strongly over the seasons and between regions, showing that they are highly flexible predators.
Anemonefish provide food to bubble-tip anemones through active provisioning, which increases the host's growth rate. This symbiotic behavior is crucial for the anemonefish as it benefits them by making their hosts larger.
Citizen science data from scuba divers reveals distinct seasonal patterns among shark species, including hammerhead sharks and tiger sharks. The study also identified changes in shark populations over time, with some species increasing in abundance while others decrease.
A nearly complete skull of the ancient apex carnivore Bastetodon has been discovered in the Egyptian desert, revealing a new species of hyaenodonta. The discovery sheds light on the evolution of hyaenodonts and their global distribution, with findings suggesting they spread from Africa to Asia, Europe, India, and North America.
A new study suggests that reintroducing wolves to the Scottish Highlands could lead to an expansion of native woodland, sequestering one million tonnes of CO2 each year. This could help address the UK's carbon removal target and contribute to climate recovery.
Researchers found that seamounts support vast numbers of predators, including sharks and tuna, with shark biomass being 41 times higher at shallow seamounts. The study suggests that seamounts serve as 'hubs' for predators to gather, socialize, mate, or rest, and concentrate food in predictable spots.
A new study reveals the profound ecological effects of wolves in Yellowstone National Park, showcasing a remarkable 1,500% increase in willow crown volume along riparian zones. The research demonstrates the cascading effects predators can have on ecosystems, with significant impacts on herbivores and plants.
Eye saccades enable mammals to chase prey and navigate through complex environments by aligning with optic flow, reducing motion blur. This mechanism allows animals to track erratic movements and react flexibly to changes in direction.
A combination of ecological restoration, economic initiatives, and political stability has led to a 30% increase in India's tiger population over the past two decades. The country's unique approach to coexistence between humans and predators involves protected reserves and multi-use landscapes where tigers and people share space.
A new study reveals that India's successful tiger recovery is driven by factors such as protection, prey availability, peace, and prosperity. The country has managed to double its tiger population since 2010, thanks in part to the establishment of protected areas and conservation efforts.
Researchers have discovered that chameleon shrimp can disguise themselves in exotic algae from other oceans, regardless of their evolutionary history. The crustaceans prefer to hide in invasive species with complex structures that offer better protection from predators.
A lone spotted hyena was found in South Eastern Egypt, marking the first recorded instance of the species in this region for thousands of years. The individual was tracked and killed after killing two goats, providing evidence of how regional climate change can affect animal migration patterns.
Researchers found that cavity-nesting birds are more likely to use shed snake skins in their construction, which helps deter predators from eating eggs. The practice is thought to be an evolutionary adaptation to reduce nest predation, with benefits most strongly expressed in cavity nests.
Paleontologists re-evaluate fossil records and discover a previously unknown predatory dinosaur species, Tameryraptor markgrafi, with significant differences from Carcharodontosaurus. The new findings suggest a more diverse dinosaur fauna in North Africa than previously thought.
Research shows that juvenile sablefish are increasingly competing with young salmon for food in coastal waters off the Northwest, potentially putting salmon at a disadvantage. This overlap could be exacerbated by ocean warming and climate change, which already threaten salmon survival.
Researchers have gained a better understanding of mosasaur evolution, relationships, and behaviors through advanced imaging technologies and comparative anatomy. A new study found evidence of cannibalism in mosasaurs and illuminated patterns of foraging area segregation and feeding diversity.
A Curtin University study uses eDNA metabarcoding to track insect interactions with avocado flowers, detecting five times more unique pest species than digital video recordings. This method could help improve yields and make agricultural operations more efficient by identifying beneficial pollinators and pests.
New research from the University of Georgia suggests that turkeys are adapting their behavior in response to hunter activity, making them harder to detect and harvest. Hunters may need to adopt more creative and patient strategies to succeed in the future.