Researchers found that bees can learn to recognize the arrangement of human facial features on a face, but not individual humans. The insects use this strategy to distinguish between face-like and non-face patterns.
Researchers found that inhibiting sestrin protein improves lung elasticity and gas exchange in mice with emphysema. This suggests a new therapeutic approach to alleviate critical symptoms associated with COPD.
Researchers have found that an anti-Alzheimer's drug can halt the growth of Barrett's oesophagus and even destroy mutant tissue, providing a potential cure for oesophageal cancer. The study, published in Disease Models & Mechanisms, offers new hope for therapy in heartburn-related cancer.
Researchers discovered bees use their antennae to estimate surface slope, allowing them to orient correctly and land on surfaces ranging from horizontal to ceilings. By slowing down in the final moments before touchdown, bees control their approach and optimize landing speed.
A new mouse model of lung cancer has been developed that replicates the resistance of human lung cancer cells to certain treatments. The study identified secondary mutations in the EGFR gene that contribute to this resistance, which may be targetable with specific drugs.
Researchers discovered that hammerhead sharks have an exceptional stereo view and depth perception due to their unique head shape. The study found that the scalloped hammerhead had a massive binocular overlap of 32 degrees, while the bonnethead shark had a respectable 13-degree overlap.
Researchers found that dry deer antlers are stiff and tough, absorbing more energy before shattering than wet bone. This makes them perfectly suited to their role as a weapon in duelling stags.
A marine sponge species recycles carbon from dissolved organic material, sustaining the diverse ecosystems of coral reefs. This process involves rapid cell turnover and shedding, allowing other reef residents to consume the recycled cells, thereby supporting the reef's complex food web.
Research by Stephen Piazza and Sabrina Lee found that elite sprinters' Achilles tendons translate 25% less than non-sprinters. Despite this mechanical disadvantage, sprinters still possess a powerful push-off due to slow-contracting muscles producing greater forces.
Researchers studied mice with a genetic deficiency that shortens their telomeres, similar to patients with dyskeratosis congenita. After 12-14 generations, the mice's telomeres regained normal lengths, suggesting an equilibration process that could protect against telomere erosion and disease symptoms.
Researchers discovered that barnacle adhesive polymerization is related to blood clotting, with a trypsin-like serine protease and human factor XIII proteins involved. The team found that the glue's proteins are remarkably similar to those found in human blood clots.
Researchers found that smaller migrating blackcaps lose body temperature at night during stopovers to save energy, while heavier birds drop their metabolic rates less. This helps the birds accumulate more fuel and shorten their refueling stops.
A new recombinase, Dre, has been discovered, allowing researchers to specifically target and modify genes in mice. This enables the creation of sophisticated mouse models to study complex gene interactions and their role in human disease.
Researchers discover that mitochondrial diseases increase susceptibility to bacterial infection, particularly with pneumonia-causing bacteria like Legionella. The stress-signal associated with metabolic abnormalities encourages the growth and reproduction of these bacteria.
Seabirds face an 'energetic bottleneck' in winter, struggling to find enough food to survive harsh conditions. The study suggests that the birds' high energy demands may be too much to handle, leading to catastrophic losses during the winter months.
Researchers discovered that neon blue-tailed tree lizards can glide through the air with ease, thanks to their lightweight bodies. The team found that the lizard's low weight allowed it to generate lift and stay airborne for longer periods, similar to gliding geckos.
Researchers have discovered that dolphins' flippers exhibit aerodynamic properties similar to modern delta wing aircraft. The study found that swept-back flippers are the most efficient at generating lift, with the bottle nose dolphin's triangular flippers being the most efficient overall.
A team of researchers used mice as model animals to study the key proteins involved in two types of muscular dystrophy. They found disrupted stem cell function and delays of skeletal muscle formation in embryos of MD-like mice, suggesting that both types of MD might be detected in utero or shortly after birth.
Researchers Ennos and Warman found that fingerprints do not increase friction between the skin and objects, contrary to a long-held theory. In fact, the ridges in fingerprints can reduce skin contact and even loosen grip, making them less useful for grip than previously thought.
A study published in the Journal of Experimental Biology found that manatees can probably hear which directions boats approach from. The animals were able to pinpoint sound sources, including both high- and low-pitched sounds, using a combination of time difference and intensity cues.
A new mouse model has been created to understand human neuronal diseases that impair feeling and movement. The mouse model mimics symptoms of Charcot-Marie-Tooth and hereditary motor neuronopathy, two conditions with no effective treatments.
Scientists use zebrafish to investigate the role of RAS mutations in melanoma formation and progression. The research found that altering signaling pathways can reduce the effects of RAS mutations, providing a potential therapeutic approach.
A parasitic bacterium may reduce mosquito lifespan and limit dengue fever transmission. Infected mosquitoes become more active as they age, but their activity levels don't increase further.
Researchers tested two dolphins' cognitive performance after 5 days of continuous auditory vigilance, finding no signs of sleep deprivation. The dolphins remained alert and responsive to both sound and visual stimuli throughout the 120-hour experiment, with their blood showing no physical signs of fatigue.
A study by University of Illinois scientists reveals the FRG1 gene is crucial for angiogenesis, contributing to blood vessel growth and organization in the retina. The findings support the idea that FRG1 expression is a main cause of visual deficits associated with facioscapulohumeral muscular dystrophy.
Scientists have created a mouse model of Wolf-Hirschorn Syndrome, a genetic disorder characterized by physical abnormalities and developmental delays. The model, which mimics the disease's effects on cardiac valves and facial structures, offers a valuable tool for researchers studying human development and disease.
A team of scientists studied how alligators grow and develop in different oxygen levels, discovering that low oxygen environments result in enlarged bellies and smaller organs, but also larger hearts. The study provides insights into the adaptations of dinosaurs to survive in a world with fluctuating oxygen levels.
Researchers from the University of Wisconsin successfully generated human embryonic stem cells that can produce myelin, a finding with potential for both basic and clinical research. The process takes 14 weeks compared to 2 weeks for mouse ES cells.
New research using African frogs reveals that alcohol 'hijacks' a molecule needed to produce retinoic acid, which is crucial for embryonic development. This leads to cellular disorientation and malformations in babies.
A study found that quails fed an omega-3 fatty acid-rich diet for 6 weeks showed significant increases in aerobic capacity, similar to those seen in migrating sandpipers. The birds' muscle membranes revealed even distribution of the fatty acids, suggesting a non-selective allocation.
A new approach to generate induced pluripotent stem (iPS) cells has been developed by Austin Smith's team. They used a single reprogramming factor called Klf4 and a transposable element called Piggybac to persuade partly specialised mouse cells to reprogram into iPS cells.
Researchers discovered that male Australian crayfish use deceptive signals to advertise their strength, cheating rivals with weaker but larger claws. This behavior comes at a cost, as large claws may hinder the males' ability to escape danger.
A new study describes how telomere dysfunction in skin cells can lead to increased skin cancer risk and pigmentation. Limiting the activity of a tumor suppressor protein, p53, restores cell regeneration but also advances skin cancer progression.
Researchers have developed a human cell-derived model of ALS, allowing for the study of the disease's progression and potential therapeutics. The model, derived from motor neurons generated from human embryonic stem cells, exhibits characteristics typical of the disease.
Researchers found that tree-dwelling lizards have a unique escape mechanism: dropping their tails to distract predators. Without their tails, the lizards tumble backwards uncontrollably, suggesting a significant ecological cost for this life-saving adaptation.
A new study identifies miR-23 as a microRNA that regulates myelin formation and maintenance. By turning down lamin gene expression, miR-23 prevents demyelination due to lamin overexpression, offering a potential treatment for demyelinating illnesses.
Researchers found that honeybees danced vigorously in response to cocaine, indicating a potential susceptibility to the substance. The bees' sensitivity to rewards was increased, and they exhibited withdrawal symptoms when the drug was withheld.
Scientists used live animal imaging to study chronic Listeria infection harbored in bone marrow, finding persistent patches of bacteria. The researchers also explored attenuated strains of Listeria for cancer treatment, but it's unclear if bacterial persistence affects therapeutic effects.
Researchers have identified a novel zebrafish model of Costello syndrome, a developmental disorder caused by mutations in the H-RAS gene. The study reveals that activated H-RAS promotes overabundant cell growth and hallmarks of Costello Syndrome, including heart defects and physical deformities.
Scientists express human CLN3 gene mutations in yeast cells to study Batten disease, finding that mutated cells' severity parallels human symptoms. The study also opens new avenues for investigating therapeutic compounds to treat the disease.
Researchers measured oxygen consumption rates of hatchlings swimming to safety, finding a rapid decline in energy expenditure over time. The findings suggest that young turtles can survive up to 14 days without food in the open ocean.
Researchers Annemarie Surlykke and Elizabeth Kalko measured the volume of two 'whispering' bat species' calls, discovering they were actually shrieking at levels up to 110 decibels. The findings suggest that these bats use high-volume calls for echolocation in complex forest environments.
Dr. Audrey Dussutour's paper reveals how ants regulate sugar intake in response to colony growth, finding that larvae drive the nest's collective stomach. The discovery sheds light on how colonies communicate and regulate nutritional needs.
Researchers predict that humans could achieve a top speed of over 17m/s, while dogs and horses have reached their limits. Female sprinters could also shave off significant seconds from the current world record.
A study of gibbon foot movements suggests that early humans may have used elastic energy storage mechanisms to walk efficiently. The gibbon's flexible foot allows for more efficient energy storage and release, similar to the human foot.
Researchers created a genetically modified mouse expressing excessive PAD2, resulting in significant myelin loss and behavioral deficits. The study highlights PAD as a potential therapeutic target and marker for early detection of MS and related diseases.
Researchers studied glucose tolerance in two species of Peromyscus mice, finding that males from a calmer, more monogamous species had superior blood sugar regulation. A genetic variance linked to the Y chromosome is responsible for this response.
Researchers found that midges prefer ponds with high polarization levels, which may be related to nutrient content. This discovery could help control midge numbers and minimize cholera transmission by offering alternative, polarized light-reflecting water sources.
Researchers have identified molecular signals causing abnormal changes in the peritoneum, a lining used in peritoneal dialysis. Disrupting these signals may help maintain PD's effectiveness and offer new hope for former PD patients seeking alternative treatments.
A team of researchers discovered that bee swarms are guided by high-speed streaker bees, which fly through the top half of the swarm at high speeds. The team filmed swarming bees with high-definition cameras and analyzed over 3500 frames to build a picture of the insects' flight directions.