Research by Max Planck Institute for Chemical Ecology reveals that desert ants, like Cataglyphis fortis, utilize a combination of visual landmarks and unique scent signatures to guide them back to their nests. This groundbreaking study challenges the long-held notion that these ants rely solely on self-generated pheromone trails.
The ACS National Meeting features a vast array of research on nanotechnology, spanning topics such as green manufacturing processes and medical applications. The event is expected to bring together over 11,000 scientists and showcase nearly 1,000 research papers.
Researchers at McGill University found that disabling the ability to clean cells of toxic molecules can lead to longer lifespan in some organisms. Oxidative stress theory is called into question, with evidence suggesting it may be a result of aging rather than its cause.
A new study by University of California, Berkeley biologists reveals that many common salamander species have plummeted in Central America, contradicting previous attributions to habitat destruction and pesticides. Instead, researchers believe global warming is driving these species to higher elevations where habitats become inhospitable.
Researchers developed a new strategy to identify areas within hotspots where they should focus their time, effort and money. They used multiple species and past climate models to estimate the species' past distributions, pinpointing regions that have been climatically stable and likely to harbor diversity.
Researchers found that older killer whales nearing menopause have a 10% higher survival rate for their calves compared to younger females. This suggests that these older mothers may be more successful in rearing their young due to maternal experience and increased allocation of effort.
Tel Aviv University researchers have developed a program that analyzes animal behavior to understand and treat OCD. By comparing human behavior to animal rituals, the model identifies abnormal patterns and provides a tool for mental health practitioners. This innovative approach may motivate patients to correct their compulsive actions.
A new study reveals that spitting cobras create complex geometric patterns of venom when striking, which are actively produced by the snake's muscles. This allows them to hit their targets with remarkable precision, making contact with an attacker's eyes where it causes severe pain and possibly blindness.
A new species of fish from tropical South America has been discovered, confirming suspected roots to the loricariid catfish family tree. The species, Lithogenes wahari, shares traits with both the Loricariidae and Astroblepidae families, including bony armor and a grasping pelvic fin.
Researchers used scanning electron microscopy to study scorpion book lungs, revealing new variation and phylogenetic significance. The findings suggest a significant change in respiratory apparatus evolution early in modern scorpion history.
Researchers at McGill University discovered that clioquinol reverses Alzheimer's disease progression and may slow down the aging process by inhibiting CLK-1. The study suggests a potential new answer to the mechanisms behind three unrelated neurodegenerative disorders.
Researchers found that key ecological threats can be detected in advance, allowing for swift policy change. Monitoring and analysis of ecosystem data are crucial to preventing regime shifts and averting ecological harm. The study's findings offer a new approach to predicting environmental disaster and informing conservation efforts.
Researchers found that grazing animals like deer and rabbits increase the prevalence of a viral plant disease by promoting the growth of aphid-preferred annual grasses. This study challenges previous theories suggesting that herbivores help contain or reduce disease, highlighting the complexity of natural ecosystems.
A population genetics expert argues that cousin marriage laws are ill-advised due to a smaller risk of birth defects than previously assumed. The laws, which vary by state in the US, reflect outmoded prejudices and oversimplified views of heredity.
Researchers at American Museum of Natural History found a close evolutionary relationship between malarial parasites in rats and humans, including Plasmodium falciparum. The study suggests that the most deadly form of malaria may have originated from rodents.
Researchers are fitting lobsters with transmitters to track their migrations year-round, providing more accurate information about juvenile lobster sources and interactions between populations. The study aims to improve management of the economically valuable fishery, allowing lobsters to remain a staple in New England cuisine.
Researchers at the University of Florida have discovered that rooted plants can mysteriously move down greenways, contradicting expectations based on physical forces. The study found that plants with no obvious mechanism for dispersal colonize corridors more quickly and at farther distances than isolated habitats.
Humpback whales use a high-speed diving technique called lunge-feeding to catch prey, but this method comes with significant energy costs. The study found that lunge-feeding requires more energy and time than other behaviors, such as singing.
Researchers using robotic lizards in Puerto Rico's forests showed that animals can use visual displays to grab their neighbors' attention before initiating more information-rich performances. Pushups and rapid dewlap extensions prompted neighboring lizards to orient themselves more quickly, confirming a nearly 30-year-old hypothesis.
Researchers at University of British Columbia have developed a formula to predict the impact of climate change on Pacific salmon stocks. The study found that high temperatures push certain sockeye salmon stocks beyond their thermal window, resulting in cardiovascular failure and death.
Research reveals sea snakes dehydrate in saltwater and prefer freshwater or diluted brackish water. The findings may help explain the patchy distribution of sea snakes and their vulnerability to climate change.
Genetic research reveals black rats carried a pathogenic protozoan that exterminated two endemic species on Christmas Island. The study is the first to demonstrate extinction in a mammal due to disease, contradicting most scientists' view of pathogens' effect on species.
A recent study found that some endangered Pacific salmon stocks are surviving as well as or better in rivers with hydroelectric dams as in those without. Researchers used acoustic telemetry technology to track juvenile salmon migration and survival rates in the Fraser and Columbia Rivers, revealing a surprising similarity between damme...
A new study predicts that a two-degree temperature increase could shrink kangaroo populations by 48% and lead to their possible extinction in northern Australia. Climate change is likely to affect habitats, particularly water availability, making it harder for kangaroos to adapt.
A study by University of California, Berkeley biologists found that small mammal populations in Yosemite National Park have shifted to higher elevations in response to warmer temperatures. The study, which compared data from 1914 and 2014, also revealed changes in community composition due to climate change.
A Tel Aviv University study found that two-thirds of cat-dog households reported a positive relationship, while aggression was observed in 10%. Cats and dogs can learn to read each other's body signals, suggesting they may have more in common than thought.
Researchers have found that large flightless birds of the southern continents did not share a common flightless ancestor. Instead, each species lost its ability to fly after diverging from ancestors that had the ability to fly. This challenges the long-held assumption of vicariance and suggests parallel evolution among these bird species.
A new study has resolved a 50-year-old debate on cell division, finding that both polar relaxation and equatorial stimulation mechanisms exist in cells. This discovery may aid cancer research and provide insights into genetic diseases.
Male Jamaican anole lizards use visual displays to mark their territory, including push-ups, head bobs, and dewlap extensions, to warn other males away. This behavior helps avoid physical confrontations and establishes dominance before dawn and dusk, when these lizards are most active.
Male Anolis lizards engage in push-ups, head bobs, and dewlap extensions to defend their territory at dawn and dusk. This behavior is unique among animals, marking the first recorded use of non-acoustic signaling at these times.
Researchers found that cane toads are unlikely to thrive in Melbourne, Adelaide, and Hobart due to the region's cool temperatures. However, they expect them to move further south by 2050 under moderate global warming, potentially affecting cities like Sydney and Perth.
Researchers from UC Berkeley argue that devastating declines of amphibians worldwide signal a biodiversity disaster. The study highlights the impact of chytridiomycosis, habitat constriction, and pollution on frog populations, contributing to a sixth mass extinction event.
A new report details the historic mass extinction of amphibians, with extinction rates reaching unprecedented levels. The authors attribute the decline to human activities exacerbating climate change and a deadly infectious disease, chytridiomycosis.
Researchers found that capsaicin slows microbial growth and protects the fruit from Fusarium fungus, allowing seeds to be dispersed. The production of capsaicin comes at a cost for chili plants, with thin seed coats being a consequence of prioritizing chemical protection.
A new study from Tel Aviv University finds that people's response to risk is driven by personal experience and simple strategies for coping in nature, rather than logical rationales or statistics. This behavior may not be well-suited for the modern world, where risks are more complex and unpredictable.
Social spiders have developed a unique foraging strategy that enables them to capture larger prey despite declining individual catch rates with colony size. This efficiency allows colonies to thrive in tropical areas but dwindle in higher elevations and latitudes.
Researchers found that phytoestrogens from soy can cause irreversible changes in the brain's reproductive development, leading to early-onset puberty and symptoms of advanced menopause. The study also shows that these compounds can alter the sex-specific organization of the hypothalamus, a critical region for female reproduction.
A study published in Nature shows that parasites have substantial biomass in ecosystems, sometimes exceeding that of top predators by a factor of 20. This challenges the long-held assumption that free-living organisms like fish and birds dominate biomass in habitats.
A new study found that lionfish can slash the survival of other reef fishes by 80 percent within a short period. The invasive species disrupts the ecological balance of coral reefs, allowing seaweeds to overwhelm them. This is another major threat to coral reefs, following overfishing and pollution.
Recent research reveals that spotted hyenas often hunt alone to avoid feeding competition within their social group and instead opt for solo hunts to ensure individual survival. By doing so, they tap into a previously unknown strategy for increasing their chances of capturing prey.
Research published in Nature Genetics reveals that marsupials and humans share an identical genetic imprinting mechanism that evolved 150 million years ago. This discovery helps determine how the mechanism works and what can be done to prevent human diseases related to genetic imprinting.
Researchers found that toads in suburban areas are less likely to suffer from reproductive system abnormalities than those near farms. The study highlights the difference between the impact of agriculture versus development on amphibians.
A study found that children tend to overestimate the relative numbers of certain taxa, such as mammals and birds, while underestimating others, including social insects and annelids. This knowledge is crucial for inspiring future conservationists.
A newly discovered life history among tetrapods reveals a Malagasy chameleon spends most of its life in an egg, hatching after just 4-5 months. This rapid growth rate is unlike any other known four-legged animal.
Researchers have successfully inserted DNA from the extinct Tasmanian tiger into mouse embryos, demonstrating a functional response in developing cartilage and bone. This breakthrough has significant implications for the development of new biomedicines and gaining insights into the biology of extinct animals.
A team of scientists led by Iain Couzin found that cannibalistic interactions are responsible for locusts' collective motion. The behavior, observed in immature locusts, leads to the formation of large mobile groups called bands that devour vegetation and eventually precede flying swarms.
Malagasy mouse lemurs use advertising calls to attract mates of their own species, ignoring those of similar but different species. This unique communication method helps prevent hybridization and ensures genetic purity.
Researchers at the American Museum of Natural History contributed to a study analyzing over 2,300 species in Madagascar to develop a more efficient conservation plan for the country's unique biodiversity. A new phylogenetic tree of multicellular animals has also been redrawn by comparing genetic data from diverse animal phyla.
Researchers have identified two strains of mice that exhibit high rates of maternal neglect, which reflects disrupted reward-seeking behavior and abnormal dopamine signaling. The study provides a valuable opportunity to investigate the biological and behavioral bases of naturally occurring maternal neglect.
A new study has introduced a nonlethal method to measure the body composition of small rodents using Dual-Energy X-Ray Absorbtiometry (DXA). This technology allows for accurate measurements without harming the animals, facilitating longitudinal research and increasing scientific collaboration between field and laboratory researchers.
Peter Glynn, a professor at the University of Miami's Rosenstiel School, has received the Provost's Award for Scholarly Activity for his groundbreaking research on coral reefs. His work highlights the impact of climate change on coral bleaching and death.
The American Chemical Society's 235th national meeting will present hundreds of newsworthy topics, including a new test for gunshot residue and blood from the American alligator being used as a medical lifesaver. Researchers will also showcase discoveries in chemistry and other fields, such as technology to turn waste CO2 into DVDs and...
Australian yabbies possess a remarkable capacity for facial recognition, studying found that they can identify and distinguish between individuals. This ability is comparable to that of humans and some vertebrates, but rare in invertebrate species.
A global malaria map reveals a significant reduction in risk, with 1 billion people under lower infection rates. The map, produced by the Malaria Atlas Project, provides critical data for targeted control measures and potential elimination efforts.
A recent study published in Nature reveals that zoonoses, disease originating in animals, are a major threat to emerging diseases. The team's analysis of 335 disease emergence incidents between 1940 and found that tropical regions with abundant wildlife species are likely next targets.
Bottom trawling stirs up sediment plumes that can be seen from space, causing widespread damage to corals, sponges, and other animals. New satellite images reveal the extent of this destruction, highlighting the need for alternative fishing methods.
Recent decades have seen a significant shift in oil palm research, with an increasing focus on the environment and biofuel production. However, biodiversity assessments remain scarce, particularly for insect species that carry out key ecosystem functions.
Crocodilians divert blood through a special vessel called the left aorta to bypass their lungs during digestion. This unique system enables them to secrete gastric acid at an unprecedented rate, facilitating digestion and survival. By shunting CO2-rich blood straight to the stomach, crocodilians maintain optimal digestive conditions.
The newly discovered grey-faced sengi (Rhynchocyon udzungwensis) is a large, rare species found only in two high-altitude forest blocks in Tanzania's Udzungwa Mountains. Its unique features include a distinctive grey face and jet-black lower rump, highlighting the region's exceptional biodiversity.
Scientists studied prairie voles' mating habits and nervous systems to understand their behavior. The research found that male 'wanderers' lack receptors for spatial memory, leading them to return to territories with high contact with females.