Articles tagged with Ants
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Research reveals three major types of ant societies: small colonies with a single queen and diverse workers in tropical regions, large colonies with multiple queens and uniform workers in deserts, and temperate regions with polygynous and monomorphic colonies. Environmental conditions shape these social structures on a global scale.
Two new studies show how climate shapes the behavior, communication, and genome evolution of ants and their social parasites, leading to adaptation in this long-standing conflict. Climate influences aggression, chemical profiles, and genetic strategies in both hosts and parasites, with varying responses across different climates.
Researchers created a reference brain by merging 40 ant brains, revealing surprising variations in brain size and a distinct tilt in higher-order processing regions. The study provides new insights into the neuroscience of individuality within animal societies.
A new study reveals that the genus Escovopsis emerged 56.9 million years ago but didn't start associating with leafcutter ants until 38 million years ago, suggesting a complex evolutionary history. The fungus's adaptations to its ant hosts likely contributed to its success as a symbiont.
Researchers discovered that terminally ill ant brood release an odor signaling their impending death and risk, allowing the colony to detect and remove pathogenic infections. This early warning system facilitates rapid disease detection and effective removal of pathogens.
Researchers discover a new parasitic strategy where an invading ant queen uses a chemical spray to manipulate host workers into killing their own mother. The study details two species of parasitic ants that use formic acid as a chemical camouflage to get past the colony's defenses.
A parasitic ant queen tricks ant workers into killing their queen mother by spraying a foul-smelling chemical, causing her daughters to turn against her. The parasitic queen then usurps the throne and is served by the workers.
In a study by Michelle Miner at UC Riverside, bumble bees were found to avoid foraging near ant colonies due to the risk of being bitten. However, aggressive bees who fought back were victorious in individual fights but may ultimately harm their colony by wasting energy.
A team of researchers has identified a common sex-determining gene called ANTSR in both bees and ants, revealing a conserved mechanism that has been present for over 150 million years. This finding sheds light on the genetic basis of sex determination in these species and may have implications for bee conservation and breeding programs.
Researchers at University of Würzburg discover carpenter ants perform prophylactic amputations on injured workers, halving infection spread and doubling survival rate. This unique approach is reminiscent of human medical logic, highlighting the importance of timely treatment in densely populated colonies.
Scientists discovered that leafcutter ants with large loads perform fewer antennae taps per step, limiting their ability to perceive the trail. By reducing the load, they increase antennae taps, highlighting the impact of oversized loads on trail navigation.
Scientists recreated a traditional Balkan yogurt recipe using ants, finding that the insects' natural chemicals and microbes can kickstart the fermentation process. The researchers tested live, frozen, and dehydrated ant products, concluding that only live ants are suitable for yogurt making.
A dogbane species has evolved to mimic the smell of injured ants to attract flies that feed on the ants and pollinate the flowers. The discovery reveals that floral mimicry is more diverse than previously imagined.
A study found that ants can scare away pollinators like bees when defending plants with extrafloral nectaries, which are secretions that attract ants but not pollinators. However, plants with these glands on other locations had increased reproductive success.
A NJIT student-faculty team won a best presentation award for their research on simulating ant swarm aggregations dynamics. Their study showed that ant swarms exhibit fluid and elastic properties, similar to biological systems.
A study by Okinawa Institute of Science and Technology researchers found that 79% of endemic ant species in Fiji are declining over the past few hundred years, coinciding with European contact and modern agricultural techniques. In contrast, non-native ant species are exploding in population.
A University of Toronto study finds that global warming may increase the risk of invasive ant species by enabling them to expand into outdoor environments. Researchers warn that some indoor-only ant species have the potential to cause significant damage if they become established outdoors.
New research reveals that body size and caste in ants are coupled, with genetics determining the threshold for becoming a queen. Genes influence size and modify the size at which queen-like traits emerge, affecting the probability of becoming a queen.
Researchers discovered that ants' wax layers exhibit complex phase behavior, allowing them to balance hydration and communication needs. The layer's viscosity decreases with rising temperatures, but also shows unique effects when exposed to different acclimatization temperatures.
A new international study provides deep insights into the genomes of superorganisms by analyzing the genetic basis of ant evolution. The researchers sequenced and compared the genomes of over 140 ant species, uncovering a series of evolutionary innovations that led to the emergence of distinct queen and worker castes.
Scientists have discovered a 113-million-year-old hell ant fossil in Brazil, representing the earliest undisputable geological record of ants. The find showcases highly specialized anatomical features, suggesting unique hunting behaviors in ancient insects.
A 16-million-year-old fossil of a newly discovered extinct dirt ant species, Basiceros enana, has been found in Dominican amber. The Caribbean species is notably smaller than its modern relatives, offering direct evidence of their presence in the region before local extinction.
The new season of The Last of Us explores the real-life characteristics of cordyceps, including its airborne spore method of infection. Researchers like Dr. Jim Kronstad highlight the warming climate as a potential contributor to the spread of harmful fungi.
Researchers found that lemon leafcutter ants increase their cleaning behavior one week and a month after initial contact with a pathogenic fungus, but not after 60 days. The ants recognize the pathogen and recruit more workers to fight it even after multiple re-exposures, indicating a social immune memory.
A study found that caterpillars of two species interact solely with one ant species each, secreting a sugary liquid for recognition and protection. However, switching the pairings led to aggressive attacks from ants, highlighting the specificity of these interactions.
Researchers at Nagoya University discovered how parasitic crickets, such as Myrmecophilus tetramorii, navigate life among potentially lethal hosts through precise evasion tactics. By employing two behavioral strategies, 'distancing' and 'dodging', crickets reduce the risk of being attacked by ants.
A team of researchers from UniTrento examined how ants manage traffic congestion using pheromone trails and observed individual ant movements. Their findings could provide a model for optimizing autonomous vehicle traffic flow, reducing congestion and emissions.
Researchers found that ants learn to associate the scent of attackers with aggression, leading to increased behavior towards familiar competitors. The study suggests that ants can adapt their olfactory receptors based on their experiences, reflecting what they have learned.
In a Weizmann Institute experiment, groups of ants demonstrated superior problem-solving skills compared to human groups and individuals. Humans struggled to improve performance when working together, relying on individual calculation rather than collective strategy.
Researchers at Kobe University have discovered that ants and camel crickets are crucial in the pollination and seed dispersal of rare parasitic plants. These tiny arthropods play a unique dual role, visiting flowers for pollen and nectar while later feeding on leaves carrying seeds.
A recent study on pharaoh ants found that worker larvae can be treated with juvenile hormone to develop gyne-like physical characteristics, including wings and a sperm storage organ. However, this does not lead to the development of ovaries, highlighting the limitations of reprogramming somatic cells for reproductive roles.
A team of FSU researchers created the first model that explains the phenomenon of trail formation to multiple food sources. The model reveals that ants will leave pheromone trails connecting their colony to multiple food sources when they're available, creating an equilibrium where equidistant food sources maintain multiple trails.
A study on attine ants reveals that beneficial bacteria live on the surface of their exoskeletons, which nourish these bacteria. The researchers found that these bacteria, including Pseudonocardia, are thought to have initially been gut symbionts and became cuticular symbionts around 20 million years ago.
Climate change could be disrupting symbiotic relationships between insects and plants, with urban areas showing less herbivory despite lacking protective ants. The study found that urban plants were not decimated without their normal protector ants, suggesting alternative defense mechanisms.
Researchers at LSU and Smithsonian Institution found that ants began farming fungi after an asteroid struck Earth 66 million years ago. This behavior is still exhibited by some ant species today.
A new study reveals that ant agriculture and fungus farming originated 66 million years ago, with colonies of ants beginning to cultivate fungi in the aftermath of the asteroid impact. This partnership has evolved over time, with some fungal crops becoming completely reliant on ants 27 million years ago.
A study published in Science reveals that ancient asteroid impact may have led to the evolution of fungus-farming ants, which were able to cultivate fungi due to a shortage of food sources. The findings support the hypothesis that this relationship defines the emergence of agriculture.
Researchers found that the presence of Oecophylla ants at base of mountains drives insect-eating bird diversity to mid-elevations. At lower elevations, bird groups competing with ants reduce in diversity.
A recent study reveals tarantulas have mutually beneficial relationships with various species, including amphibians and army ants. The spiders' dense hair may serve as a defense mechanism against these predators. Tarantulas also employ unique escape strategies and potentially utilize chemical defenses to deter attacks.
Researchers at Rockefeller University found that clonal raider ants preserve genetic diversity through a unique method of asexual reproduction. The study reveals that daughter ants inherit two distinct versions of their genome, largely preserving the genetic diversity present in their mother's genome, which enables the species' survival.
Researchers discovered that multiple ant species have evolved specialized relationships with understory trees in Central America, mirroring similar mutualisms found elsewhere. The study suggests that these interactions can evolve independently, with two distinct clusters emerging around 3 million years ago.
Researchers at TU Delft developed an insect-inspired navigation strategy for tiny, lightweight robots, allowing them to return home after long trajectories while requiring minimal computation and memory. The strategy combines visual breadcrumbs and step counting to enable autonomous navigation in cluttered environments.
Researchers found that ants need three main things to succeed when hitchhiking: climbing ability, foraging/colonizing behaviors, and temperature tolerance. The study tracked the spread of invasive ants through non-commercial transport on personal vehicles, highlighting a significant threat to native species.
Researchers found that nocturnal bull ants can detect exceedingly low levels of polarised moonlight produced throughout the lunar month to navigate during the night. The ants altered their direction in response to changing rotations of overhead lunar light polarisation, suggesting a stable cue across the lunar cycle.
Researchers found that Orco protein is necessary for the development and life of olfactory cells in ants. Mutant ants lacking Orco experience massive olfactory neuron loss, suggesting a link between Orco and neuronal survival.
A noncoding gene has been identified as the deciding factor in determining sex in Argentine ants, with a specific genomic region being crucial to this process. The gene does not encode a protein but rather produces an RNA that influences sex determination.
A captivating new species of ant has been found with a metallic blue coloration, adding to the rich diversity of the Eastern Himalayas. The discovery was made during an expedition to resurvey biodiversity in Arunachal Pradesh's Siang Valley.
Researchers discovered that ferns and flowering plants independently evolved nectaries around the same time to defend against herbivores. Ferns likely recruited ant defenders secondarily, tapping into pre-existing relationships as they transitioned from forest floor to canopy.
Researchers found that intermediate doses of caffeine boost learning in Argentine ants, reducing foraging time by 28-38% and improving route efficiency. Caffeine did not increase speed but enhanced cognitive processing.
A Binghamton University professor investigates the adaptive response of fire ant rafts to mechanical load, discovering that they exhibit catch bond behavior under force, which enhances cohesion for survival. This phenomenon is being explored to develop artificial materials with autonomous self-strengthening properties.
Scientists have discovered a new ghostly slender ant species, Leptanilla voldemort, in the Pilbara region of north-western Australia. The species' unique morphology and sharp jaws suggest it may be a predator that exploits subterranean refuges.
A sample of almost 4,000 haiku references butterflies, bees, ants, and flies most frequently, describing their color, flight patterns, and ecology. The study provides new insights into the diversity and complexity of arthropod references in traditional Japanese poetry.
Recent research reveals that social factors control ant queens' specialization in egg-laying and maintain it in established colonies. Founding queens assume multiple tasks before becoming specialized.
Paleobiologist George Poinar Jr. presents an early record of an ant-mimicking spider in fossilized resin, shedding light on defense strategies and evolutionary processes. The specimen, Myrmarachne colombiana, has developed a remarkable transformation to resemble ants, with adaptations including modified body parts and behavior.
A recent study reveals that non-native ant species have profoundly altered the historical distributions of ant species, reshaping global ecosystems. The study found that just 2% of ant movements are sufficient to erode established borders and redraw the distribution map for this diverse array of insects.
Four species of edible ants exhibit distinct flavor profiles, including acidic and vinegary smells from common black ants and nutty, woody aromas from chicatana ants. Further investigation is needed to explore the flavor profiles of more ant species and developmental stages.
Desert ants of the Cataglyphis genus possess abilities that distinguish them from other creatures: they can orient themselves to the Earth's magnetic field. Researchers discovered this and found it is primarily processed in the ant's internal compass and mushroom bodies. The study shows that information about the magnetic field serves ...
A study published in Science found that an invasive ant species is altering tree cover in an East African wildlife area, making it harder for lions to hunt their preferred prey, zebras. The ant's arrival has shifted predator-prey behavior, potentially jeopardizing lion populations already on the brink of endangerment.
Research in Kenya's Ol Pejeta Conservancy reveals invasive big-headed ants have reduced lions' effectiveness at killing zebras. Lions now primarily target African buffalo instead, maintaining population stability.
Researchers studied ant communities in different bioenergy cropping systems to understand how they shape biotic communities and their functions. They found that perennial bioenergy cropping systems with more plant diversity gave rise to a different and more diverse ant community than simpler systems.