Articles tagged with Feathers
Researchers used eye-tracking to investigate what attracts female peahens to male peacocks. The study found that peahens spend most of their time gazing at the lower portion of the train, rather than its showy upper feathers. This suggests that the lower train may be the primary attraction for females.
The study analyzed chemical traces from the first complete Archaeopteryx feather, revealing a patterned plumage. The findings contradict previous assumptions that all feathers were black and provide crucial insights into the evolution of bird feathers.
Researchers at The University of Manchester used X-ray experiments to reveal new insights into the evolution of plumage and preservation of feathers in ancient birds. They found chemical traces of original 'dinobird' and dilute pigments, shedding light on the bird's plumage pattern.
Researchers found that African starlings can change their colors up to 10 times faster than their ancestors, leading to the emergence of new species. This is made possible by four types of modified melanosomes that interact with light in different ways.
Researchers found evidence that some feathered dinosaurs, such as oviraptors, used their tail feathers to attract mates and engage in visual exhibitions. The discovery provides insight into the evolution of feathers in dinosaurs and their similarity to modern birds.
A new study on bird-like dinosaurs reveals that feathers were initially developed for insulation before evolving into a more complex wing structure. The research, published in Current Biology, explores the early evolution of bird flight and how it relates to dinosaur forelimbs.
Academics studied earliest theropod dinosaurs and found that feathers initially developed for insulation, evolving into display and camouflage features. This basic wing configuration has remained largely unchanged for 130 million years.
The study reveals that early bird ancestors had more primitive wing designs, with simpler feathers that were different from those of modern birds. The researchers believe that these early wings may have worked effectively for gliding and high-speed flapping flight, but not for low-speed flight or ground takeoff.
Researchers have discovered fossils of the first feathered dinosaurs from North America, shedding light on their wing use. The discovery provides evidence that these dinosaurs had feathers and wings, challenging previous depictions in popular media.
In a population of rock sparrows, researchers found that older and more successful males sang with higher pitches and slower tempos, while younger males sang with lower pitches and faster tempos. Cuckolded males, regardless of age, sang louder in an attempt to re-establish their pair bond with an unfaithful mate.
Scientists have developed a new oil spill dispersant using edible ingredients like peanut butter, chocolate, and whipped cream. The dispersant not only breaks up oil but also prevents it from sticking to bird feathers, reducing the risk of harm to wildlife.
A recent analysis of avian feather lice reveals that their ancestors first colonized a particular group of birds and then radiated to different habitats, evolving into distinct species. The study found striking similarities in the adaptations of lice living in specific habitats on birds, which are attributed to convergent evolution.
Researchers found a young megalosaur with filamentous integument, revealing its body was covered in feathers, which may have been present in all predatory dinosaurs. The discovery also sheds light on the changing diets and lifestyles of juvenile dinosaurs as they grew older.
A newly discovered dinosaur, Sciurumimus albersdoerferi, has provided evidence that all predatory dinosaurs had feathers, challenging the previous assumption that feathered dinosaurs were only related to birds. The fossil, which represents a juvenile specimen, shows a remarkable difference in diet between young and adult megalosaurs.
Brown-headed cowbird females are attracted to less intense wing spreading, feather puffing, and bowing during a display. This study reveals the opposite of what was previously predicted by sexual selection theory. The researchers used audiovisual recordings to investigate the female's response to male displays.
A joint study by Johns Hopkins Bloomberg School of Public Health and Arizona State University found fluoroquinolone antibiotics in 8 of 12 feather meal samples, despite a 2005 FDA ban. The study suggests continued use of banned antibiotics in poultry production, contributing to antibiotic resistance.
Scientists have discovered that the feathered dinosaur Microraptor had a glossy iridescent sheen, similar to modern birds. The findings suggest that feathers were important for display even relatively early in their evolution.
Scientists analyze the first iridescent fossil of a four-winged dinosaur, suggesting feathers evolved for display in early bird evolution. The study provides new insights into the role of feathers in attracting mates and challenges existing theories on the aerodynamics of feather structures.
A team of researchers has discovered the color and detailed feather pattern of Microraptor, a four-winged dinosaur that lived 130 million years ago. The findings suggest that feathers were important for display in the early evolution of feathers.
Researchers at Princeton University discovered that the size of liquid drops affects how they spread along flexible fibers, with certain sizes maximizing wetting and others hindering it. This knowledge can improve industrial applications such as oil slick cleanup, bird rescue, and microfabrication.
A team of researchers discovered a well-preserved feather on Archaeopteryx's wing was black, indicating the presence of melanosomes that provided structural support. The feather structure is identical to that of modern birds, showing early evolution of wing feathers as early as 150 million years ago.
A new study reveals that pigeons' visible traits don't necessarily coincide with their genetic makeup, defying expectations. The research analyzed over 350 breeds and found that birds from different breeds can share similar traits, even if they are not closely related genetically.
Researchers from the University of Hawaii at Manoa report that native forest birds are experiencing prolonged molting periods due to increased competition with introduced Japanese white-eye birds. This change in molt timing and duration is associated with food scarcity and has significant implications for bird survival and growth.
Researchers have traced the family tree of pigeons to understand how their remarkable variation arose. The study found that some characteristics may have arisen independently on different branches of the family tree or spread through interbreeding, leading to diverse breeds.
Researchers have discovered that robins' red breast varies in size and coloration over ages and sexes, suggesting it may be used to communicate features of the owner to other robins.
Scientists used 700- to 1,100-year-old Hawaiian ibis feathers to confirm the bird's classification as a close relative of the American white ibis and scarlet ibis. The plumage coloration revealed the bird was brown-black to ivory-beige, providing new insights into prehistorically extinct Hawaiian birds.
Fossil moths from 47 million years ago had yellow-green wings that may have helped them blend in with leaves to avoid predators. Researchers reconstructed the original colors using mathematical analysis, providing insights into the evolution of color use among lepidopterans.
Researchers found that metaphorical associations with weight are just as influential as physical weight on consumer judgments. In experiments, participants who were primed to think about weight responded similarly to those who physically carried heavy loads.
A robotic bug named DASH+Wings was tested for its ability to fly and run. The results showed that the extra boost from flapping wings improved the robot's speed and stability, but did not provide enough thrust to launch it from the ground.
Researchers at Yale University created two lasers that use short-range order to control light, producing brilliant colors like a bluebird's wings. The bio-inspired technology could lead to more efficient solar cells and long-lasting paint, with potential applications in cosmetics and textiles.
A team from the University of Alberta has discovered 11 feather specimens trapped in amber, preserving details of ancient feathers and their pigment. The find suggests that small theropod dinosaurs were the source of these protofeathers, which shared similarities with modern bird plumage.
Researchers identify cause of hummingbird courtship sounds: fluttering tail feathers generate louder sound when neighboring feathers flutter at the same frequency. The unique sound is thought to be a form of aerodynamic signaling during courtship.
A Tufts University study found that analyzing bird feathers can detect corticosterone levels, a hormone linked to avian stress response. The technique provides a long-term snapshot of stress exposure and has implications for conservationists studying human impacts on wildlife.
A recent study suggests that black-legged kittiwakes use body odor to determine genetic compatibility in potential partners. The research found distinct signatures of individual and sex-specific odors, which may play a role in mate choice.
A new study reveals that bird plumage coloration falls short of filling the colour space, leaving vast regions unoccupied. Despite having an additional color cone sensitive to ultraviolet light, birds can only produce a subset of colors theoretically visible to other birds.
Research by Roz Dakin and Robert Montgomerie found that peacock tails with fewer eyespots are less successful in attracting mates, suggesting other characteristics like colour pattern may play a role. The study suggests females consider multiple factors during courtship, including tail size and health.
Researchers have observed a rise in 'naked' penguin chicks with feather-loss disorder in both Argentina and South Africa, causing concern among scientists. The disorder is thought to be related to increased energy spent on thermoregulation, potentially linked to pathogens, thyroid disorders, or nutrient imbalances.
Researchers create water-resistant thermoplastic from chicken feathers using methyl acrylate, resulting in films with excellent mechanical properties and resistance to tearing and water. The development aims to replace petroleum-based plastics with renewable resources, promoting sustainability and environmental responsibility.
A recent study by Purdue University researchers used genetic methods to count endangered eagles, revealing significantly higher populations than visual counts. The technique identified individual DNA fingerprints for each bird, leading to more accurate estimates of population sizes.
A new study shows flamingos deliberately apply pigments from their uropygial gland to their feathers for cosmetic and mating purposes. The birds modify the color of their plumage by rubbing their head on their neck, breast, and back feathers, which is more frequent during courtship displays.
A 36-million-year-old fossil reveals that ancient penguins had reddish-brown and grey feathers, distinct from the black tuxedoed look of living penguins. This discovery provides insights into the early evolution of penguin feathers, coloration, and flipper shapes.
A team of researchers discovered fossilized feathers from a giant penguin species that lived near the Equator over 36 million years ago. The feathers revealed softer gray or reddish-brown colors, unlike modern penguins' predominantly black and white feathers.
Researchers discovered that barred patterns on birds' feathers play a crucial role in sexual signaling, particularly on the front of males during face-to-face interactions. The study, published in Journal of Evolutionary Biology, provides insight into bird communication and evolution.
A new study by Ohio State University researchers found that the relationship between a male cardinal's body condition and its bright red feather coloration is weaker in urban areas than in rural areas. This disruption may affect how birds choose mates and assess quality.
Researchers found that preen oil gland secretions support a natural mechanism for AIV concentration, facilitating virus diffusion in nature. This discovery has important implications for avian influenza virus surveillance and prevention strategies.
A 150-million-year-old 'Dinobird' fossil has been found to contain remnants of the animal's original chemistry, including phosphorous and sulfur in its feathers. The discovery could revolutionize the field of palaeontology by providing a new avenue for learning about long-extinct creatures.
Scientists at the University of Manchester have discovered how male common snipes use their outer tail feathers to produce a highly seductive drumming sound. By observing deformations in the feathers as they produce the sound, researchers found that the feathers flutter like flags in the wind.
Researchers discovered that thin-billed prions visit the Antarctic waters for 90% of their molting period, while some individuals moulting further north off South America's coast. This flexibility allows them to adapt to unpredictable weather conditions and survive in vast ocean areas.
A team of Yale scientists has deciphered the color palette of a 150-million-year-old feathered dinosaur, Anchiornis huxleyi, revealing rich patterns and colors previously unknown. The analysis suggests that dinosaur feathers evolved for communication, rather than just flight.
Researchers identify color patterns in dinosaur feathers, revealing that they originated for display purposes before becoming useful for flight and insulation.
A joint team from the University of Kansas and Northeastern University found that microraptor's four wings allowed for successful gliding. The study suggests that birds evolved flight above the ground, not as a terrestrial adaptation.
Two NYC high school students used DNA barcoding techniques to discover a zoo of 95 animal species in their homes, including invasive insects and fish. They also found evidence of food fraud, with 11 out of 66 food products mislabeled, posing health risks to consumers.
Researchers have found evidence of iridescent colors in a 40-million-year-old feather fossil, revealing the first documented nanostructure responsible for color production. The discovery paves the way for studying color patterns in other ancient birds and dinosaurs.
A team of paleontologists and ornithologists have discovered evidence of vivid iridescent colors in fossil feathers dating back 40 million years. They found a preserved color-producing nanostructure, called melanosomes, which produced black with metallic greenish, bluish or coppery colors at certain angles.
Scientists develop environmentally friendly process for producing biodiesel from chicken feather meal, generating up to 593 million gallons annually. The process also produces high-grade animal feed and nitrogen-rich fertilizer, reducing waste and increasing renewable energy production.
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 use DNA in feathers to create tags that reveal population sizes, parentage, roosting patterns, and sex ratios. This technique allows for easier study of larger populations without capturing birds.
Scientists have developed a new hydrogen storage method using carbonized chicken feather fibers, which can hold vast amounts of hydrogen at a lower cost. The method has the potential to improve upon existing methods and pave the way for a truly hydrogen-based energy economy.
Research by Sievert Rohwer and colleagues reveals that maximum body size in birds is constrained by the molt process. As bird size increases, feathers wear out before they can be replaced, requiring alternative strategies to maintain aerodynamic support. This fundamental relationship ultimately limits the size of flying birds.
Using DNA barcoding and stable isotope analysis, researchers identified the species of birds involved in the Jan. 15 airline crash into the Hudson River as migratory Canada geese. The findings emphasize the need to understand the role of migration in birdstrikes to develop effective management strategies.