Researchers found that archerfish can recognize unfamiliar insects as animals based on six essential features. The fish use these features, including shape and texture, to distinguish between animals and plants, similar to human face recognition strategies.
A new study reveals that THC can cause birth defects in genetically predisposed mice, highlighting the risks of cannabis consumption during pregnancy. Pups with a mutation in Hedgehog signalling developed brain and face defects, emphasizing the need for further research into human health implications.
Scientists have developed a new therapy that combines bacteriophages with antibiotics to treat antibiotic-resistant infections, specifically targeting Mycobacterium abscessus. The treatment, using the bacteriophage 'Muddy', showed significant improvement in survival rates and severity of infections when paired with rifabutin, demonstra...
A team of scientists found that people can adjust their walking efficiency automatically, even when distracted, without having to think about it. This ability allows for focus on other tasks while walking, such as tracking road bumps and managing daily life.
Research reveals that humans take shorter strides than chimpanzees due to reduced pelvic rotation, extending their stride by only 5.4 times compared to the mini wiggles performed when walking. This discovery challenges the long-held assumption that humans have evolved the longest possible stride for efficiency.
Researchers discovered that black howler monkeys use cognitive maps similar to humans, following well-trodden routes and linking them to take short-cuts. The primates can also supplement their mental maps with knowledge of direction and distance between locations.
A study by Pavel Horký and colleagues has discovered that low levels of methamphetamine in freshwater rivers can elicit addiction in wild brown trout. The fish exhibited withdrawal symptoms when switched to clean water, suggesting addiction was present. Methamphetamine contamination in waterways poses a significant threat to aquatic life.
Researchers from The Pennsylvania State University have discovered a previously unreported structure called the 'cantil' in wild-type Arabidopsis thaliana. Cantils are rare structures that develop under specific conditions and provide important clues for understanding plant growth and development.
Researchers discovered a genetic mutation in FSIP2 protein that affects sperm flagella, leading to infertility. Mice with the mutation had impaired sperm movement, while those overproducing FSIP2 were fertile with longer, faster-swimming sperm.
Scientists have developed a Japanese rice fish model to study congenital disorders of glycosylation, including ALG2-CDG. The model replicates symptoms such as neuronal problems and retinitis pigmentosa, and demonstrates that supplying fully-functional Alg2 can prevent defects.
Researchers found that boat noise significantly reduces communication distance and coordination in duetting toadfish, impacting their mating habits. Human water traffic effectively drowns out their serenades.
Researchers discover that mantis shrimp larvae can unleash powerful punches as little as 9 days after hatching, with limb accelerations reaching blistering speeds. The tiny creatures' appendages operate similarly to those of adult mantis shrimp, but scaled down, and can hurl the limb at rotational speeds of ~16,500deg/s.
A study has found that sperm development is linked to testicular cancer in men. Germ cells that fail to undergo sex-specific differentiation and retain pluripotent features are more likely to transform into cancer cells.
A study reveals that the mouse placenta's circadian clock regulates the expression and activity of ABCB1, a drug efflux transporter, in a 24h rhythm. This finding suggests that the timing of maternal treatment could be crucial to avoid non-desirable effects on foetal development during pregnancy.
Researchers measured grizzly bears' metabolic rates on flat and uphill gradients, finding they use less energy walking downhill. The study reveals why grizzlies often appear on human hiking trails, and provides insights for hiker safety.
A recent study highlights the alarming impact of Arctic sea ice loss on polar bears and narwhals. The mammals face severe challenges due to the loss of their primary food source and increased energy expenditure, leading to starvation and vulnerability to predators.
Comparative biologists develop strategies to predict climate change impacts on species and ecosystems, informing conservation policy. Physiological adaptations and interactions between animals and their environments are crucial for building policies to protect keystone and vulnerable species.
Researchers have discovered that abnormal skeletal differentiation and remodelling are key causes of ciliopathic micrognathia in a chick model. The study sheds light on the etiology of human ciliopathic micrognathia, highlighting distinct cellular processes impaired during its onset.
Research reveals captive Asian elephants carry less body fat than average humans, with females averaging 2-25% body fat and males carrying slightly less. The study suggests that activity levels may be key to maintaining elephant health, contradicting traditional notions of obesity.
Researchers discovered that goby fins possess fingertip-like touch sensitivity, allowing fish to detect surface details. The study reveals that the fish's fins are capable of encoding texture patterns, mirroring human primate finger pads.
Researchers discovered that whale-surfing remoras use the cushion of slow-moving water carried by whales to stay attached. The fish can move along the whale's body and even skim across locations without being torn free.
Researchers deployed 23 tags to track Cuvier's beaked whale dives, recording over 3600 foraging dives with some lasting up to 2 hours and 13 minutes. The whales' ability to exceed predicted diving limits suggests an exceptional low metabolism and larger oxygen stores.
Research reveals that deep-diving southern elephant seals exploit the bioluminescent flashes of squid and fish to locate prey. The flashes serve as a warning signal for the prey, allowing them to distract potential predators and escape.
A new study reveals that Sonic hedgehog plays a crucial role in establishing flight feather identity in birds, similar to how it specifies digit identities. By using chicken embryos, researchers found that Shh is required for wing development and defines a set of genes involved in this process.
Researchers found that mantis shrimp's hammer blows are significantly weaker in air compared to water, with forces averaging only 18 km/h. The crustaceans may be downgrading their attacks to avoid joint damage and injury.
Researchers have discovered that koalas move like marsupials on the ground but employ primate-like strategies when climbing through trees. Koalas exhibit a similar gait pattern to primates, with diagonally opposed hand and foot in contact with branches for stability.
Researchers studied experienced villagers carrying heavy loads on flexible bamboo poles and found that they could save almost 20% of their energy compared to using rigid poles. The villagers' subtle adjustments in stride also helped reduce forces exerted on their shoulders.
Researchers identify two molecules, PLXNA1 and PLXNA3, that help set up the sense of smell and pave the way to puberty. This finding may lead to a better understanding of Kallmann syndrome and its treatment.
Researchers have discovered that Saharan silver ants can reach speeds of up to 0.855m/s, making them the fastest ants ever recorded. The team found that the ants' unique footwork, including a gallop-like movement and coordinated leg swings, allows them to navigate their desert habitat efficiently.
Honeybees can learn to distinguish between quantities of three and four, but fail at finer differences. Training with a bitter-tasting quinine-flavored water reward improves their math skills, enabling them to differentiate between four and five shapes.
A team of evolutionary biologists discovered that atavistic limb muscles, lost in adult humans, are formed during early human development and then disappear. These muscles are present in many limbed animals but are absent in adults. The study uses high-quality 3D images to analyze the development of human arm and leg muscles.
Researchers discovered that Asphondylia maggots use microscopic hairs to latch onto surfaces, forming a temporary leg to launch themselves into the air. This unique mechanism allows them to catapult themselves up to 121mm in just a few seconds, saving energy compared to crawling.
Researchers have discovered how a fungus controls zombie ants by invading their mandibular muscles, breaking open membrane covering muscle fibres and causing the muscle to contract forcefully, resulting in the ant's death grip.
Researchers discovered that southern right whale mothers and their calves shelter in noisy surf, staying close and whispering softly less than once per dive to avoid attracting unwanted attention. The pounding waves drowned out the soft calls, providing acoustic cover from killer whales.
Researchers found that walkers who use straight arms conserve energy and reduce their cost by 11% compared to bending their elbows. However, the study did not find any significant difference in energy costs between arm postures for runners. The exact reason behind runner's bent arm posture remains a mystery.
Researchers have successfully regenerated human retinal ganglion cells in a laboratory dish using lessons learned from rodent models. The discovery could lead to new methods of screening for drugs and genes impacted by glaucoma, potentially offering hope for vision loss patients.
Researchers found that early alcohol exposure restricted placenta growth and blood vessel formation, leading to reduced nutrient delivery to the embryo. This study has significant implications for understanding pregnancy-associated conditions like fetal growth restriction.
Researchers found that poison dart frogs possess a sophisticated brain capable of forming a cognitive map of their environment. They demonstrated this by testing the frogs' spatial awareness in a modified Morris water maze, where they successfully located a hidden platform using visual cues and landmarks.
Researchers have identified a single gene, Lsdia1, responsible for snail shell coiling in a species of freshwater snail. The study reveals that this gene controls left-right asymmetry from the earliest stages of development.
Researchers found that subterranean beetles breathe through their skin, absorbing oxygen from the surrounding water, which limits their size. This discovery sheds light on the unique adaptations of these tiny creatures living in underground aquifers.
A recent study reveals that sonar disturbs the feeding behavior of blue whales, especially in deep patches of krill. The researchers tracked the whales' movements using suction tags and found that they stop feeding when sonar signals are present, but often resume soon after.
A team of researchers found that hot great white sharks can swim at high speeds when commuting between islands, but prefer slower speeds when hunting for fat seal snacks. The study suggests that the warm-blooded lifestyle of these sharks allows them to conserve energy by using a 'sit-and-wait' strategy.
Researchers discovered that spittlebug nymphs use their foam bubbles to breathe, but only protrude their abdomens when startled. The insects can also consume oxygen within the larger bubble chamber during their final life stage.
Researchers monitored southern resident killer whale population and found that males dive deeper and are more successful hunters than females. The team tracked the animals' movements and diving patterns using archival tags to estimate how much fish they capture, revealing sex differences in foraging activity.
Researchers analyzed the flight patterns of swifts, discovering that they spend most of their time gliding and using rising currents to power their movements. This unique strategy allows them to extract energy from the air almost for free, making their foraging capabilities extremely efficient.
Researchers have developed gene-edited zebrafish models using CRISPR/Cas9, enabling precise point mutations to replicate human disease-associated genetic variants. This advancement improves the efficiency of disease modeling and opens new doors for understanding genetic disorders.
Researchers discovered that animals swish their tails to generate a curtain of breeze that wafts insects away. The study found that the animals were swinging their tails three times faster and using 27 times more energy than expected, but still only intercepted one insect every 90 seconds.
Researchers discovered that sea otters rely on the sensitivity of their paws and whiskers to hunt for food, distinguishing between grooves as small as 2mm with remarkable accuracy. This unique ability enables them to quickly locate prey in cloudy Monterey Bay waters.
Researchers measured polar and grizzly bears' oxygen consumption while walking on a treadmill, finding they consume the same amount of energy as similarly sized animals. This challenges previous ideas that polar bears burn more energy due to their environment.
Researchers discovered that Caribbean rock mantis shrimp specifically target the most fragile regions of snail shells to gain access. They can adapt their strategy based on the shell's shape and size.