Peacocks Current Events

Peacocks Current Events, Peacocks News Articles.
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Peacock tail feathers shake at resonance and hold eyespots still during courtship displays
As male peacocks shake their long feathers in courtship, the iridescent eyespots remain nearly stationary and captivate females, according a study published April 27, 2016, in the open-access journal PLOS ONE. (2016-04-27)

Rules of attraction: Catching a peahen's eye
It's not always easy attracting a female mate and peacocks have resorted to colorful displays to catch a peahen's eye. But what is a peahen looking at in a potential suitor? In a collaborative project between the University of California Davis and Duke University, USA, Jessica Yorzinski finds out using an eye-tracking technique that it's the bottom edge of a peacocks train that catches a peahen's attention most. (2013-07-24)

Scientist helps solve peacock problems
Peafowl, historically valued for their iridescent blue-green beauty, have become intolerable nuisances in some parts of California. Francine Bradley, a University of California poultry scientist, gets the call when people stop being proud of their peacocks. (2003-05-06)

Peacock love songs lure eavesdropping females from afar
The distinctive call that male peacocks make right before mating poses a puzzle for scientists. For one, he's already got the girl. What's more, the calls could alert potential predators that an easy meal is near. In a new study, researchers found that the love sounds made by amorous peacocks drew eavesdropping females from afar. Announcing the fact that he's getting a girl could help a male attract additional mates, the researchers say. (2012-12-20)

Peacock's train is not such a drag
The magnificent plumage of the peacock may not be quite the sacrifice to love that it appears to be, University of Leeds researchers have discovered. (2014-09-17)

Programming organic transistors with light; the unusual origin of peacock brown; rotating nanowires
News from the American Physical Society: programming organic transistors with light; the unusual origin of peacock brown; and rotating nanowires. (2005-06-28)

Does driving a Porsche make a man more desirable to women?
New research by faculty at Rice University, the University of Texas-San Antonio and the University of Minnesota finds that men's conspicuous spending is driven by the desire to have uncommitted romantic flings. And, gentlemen, women can see right through it. (2011-06-16)

Animal behaviorist looks through the eyes of peafowl
Dr. Jessica Yorzinski uses peafowl to conduct a variety of behavioral studies. Yorzinski looks through the eyes of the birds to actually see what the animals are paying attention to, in this particular case, how males size up their competition. (2017-03-16)

Frog sex in the city
How do animals adapt to urban environments? In the case of the Tungara frog, city males put on a more elaborate mating display than males in forested areas. (2018-12-10)

How are phenotypic differences between sexes related to phenotypic variation within sexes?
It has long been recognized that sexually dimorphic traits -- traits that are systematically different between members of different sex in the same species, such as peacocks' tail feathers -- tend to vary a great deal among individual males, and that much of this within-sex variation depends on individual condition. Indeed, theory predicts that sexual dimorphism will evolve based on condition dependence so that, among traits, a more pronounced difference between male and female should be associated with a stronger response to variation in condition. (2007-01-10)

For peacocks, the eyespots don't lie
Male peacock tail plumage and courtship antics likely influence their success at attracting and mating with females, according to recent Queen's University research. (2011-04-27)

Behavioural ecologists elucidated how peahens choose their mates, and why
Since Darwin, the peacock exhibiting an elongated tail composed of ocelli has been a prime example of sexual selection. Classical studies show females prefer a high number of ocelli. New research published today in Ethology shows peahens may actually assess ocelli density. Adeline Loyau, Michel Saint Jalme and Gabriele Sorci of the National Museum of Natural History and the Laboratory of Evolutive Parasitology say (2005-08-01)

Two genes regulate social dominance
Using the Nobel Prize gene-editing technique, a University of Houston researcher has found that two genes regulate social dominance in cichlid fish and - possibly - humans. (2020-11-10)

Unraveling the genes for sexual traits in stag beetles
Scientists have built a gene expression database of a stag beetle and identified genes important for sex determination and differentiation. (2016-07-03)

Bird genes are multitaskers, say scientists
Scientists from the University of Sheffield have found that although male and female birds have an almost identical set of genes, they function differently in each sex through a mechanism called alternative splicing. (2020-09-25)

Best evidence yet that dinosaurs used feathers for courtship
A University of Alberta researcher's examination of fossilized dinosaur tail bones has led to a breakthrough finding: some feathered dinosaurs used tail plumage to attract mates, much like modern-day peacocks and turkeys. (2013-01-04)

Like father, like son: Attractiveness is hereditary
Sexy dads produce sexy sons, in the insect world at least. While scientists already knew that specific attractive traits, from cricket choruses to peacocks' tails, are passed on to their offspring, the heritability of attractiveness as a whole is more contentious. Now, new research by the University of Exeter, published today (Nov. 20) in Current Biology, shows that attractiveness is hereditary. (2007-11-19)

Male bats with high testosterone levels have large forearm crusts when females are fertile
Mammalian odors are frequently sexually dimorphic, with males often exhibiting a stronger, or otherwise distinct, odor relative to females, which can be especially useful for nocturnal species with reduced use of vision. Some male bats exhibit intense odors to attract females and reproduce, presumably as a consequence of a high concentration of testosterone. (2020-12-15)

Domed dinosaur king of the head butt
University of Calgary researchers surveyed the heads of a large number of modern animals as well as one of the world's best dinosaur fossils and they found that the bony anatomy of some pachycephalosaur domes are better at protecting the brain than in any modern head butter. The results of their research is published in PLoS ONE. (2011-06-28)

Study of birds' sense of smell reveals important clues for behavior and adaptation
A large comparative genomic study of the olfactory genes tied to a bird's sense of smell has revealed important differences that correlate with their ecological niches and specific behaviors. (2015-07-29)

Feathered cousin of 'Jurassic Park' star unearthed in China
A newly identified species of feathered dinosaur is the largest ever discovered to have a well-preserved set of bird-like wings, research suggests. (2015-07-16)

Zoologists uncover new example of rapid evolution - meet the Sulawesi Babblers
The zoologists, from Trinity College Dublin, have discovered that male and female Sulawesi Babblers (Pellorneum celebense, a species of bird) have evolved to attain different sizes on small islands, and in quick-fire time. They believe this is most likely due to evolutionary pressure favouring such ''dimorphism'' because the birds are able to reduce competition with each other by feeding on different, scarce resources. (2020-10-08)

No easy solution to genetic 'battle of the sexes'
A new study published today shows a genetic 'battle of the sexes' could be much harder to resolve and even more important to evolution than previously thought. (2010-11-04)

Studies suggest males have more personality
Males have more pronounced personalities than females across a range of species -- from humans to house sparrows -- according to new research. Consistent personality traits, such as aggression and daring, are also more important to females when looking for a mate than they are to males. Research from the University of Exeter draws together a range of studies to reveal the role that sexual selection plays in this disparity between males and females. (2009-11-17)

Sexing Stegosaurus
The first convincing evidence for sexual differences in a species of dinosaur has been described by University of Bristol M.Sc. student, Evan Saitta, in a study of the iconic dinosaur Stegosaurus, published today in the scientific journal PLOS ONE. (2015-04-22)

Female mammals follow their noses to the right mates
Historically, most examples of female mate choice and its evolutionary consequences are found in birds. But that doesn't mean mammals aren't just as choosy, researchers say. It just means that mammal mate preferences may be harder to spot. (2009-03-17)

New dinosaur discovery suggests new species roosted together like modern birds
The Mongolian Desert has been known for decades for its amazing array of dinosaurs, immaculately preserved in incredible detail and in associations that give exceedingly rare glimpses at behavior in the fossil record. (2017-08-24)

Best practices in communication for the animal world
Effective communication is not just about the signaler, according to the study, the receiver also needs to assess the signaler efficiently. For instance, one of the most effective strategies from the perspective of female birds is assessing groups of males called leks, where females can assess multiple males in a short period of time. (2014-04-22)

A study in scarlet Japanese macaques
Researchers assumed that the red faces in Japanese macaques signaled fertility. But new research indicates that it acts more as a 'badge' of social status and is involved in signaling social attributes than fertility. (2019-07-08)

In the eye of a stellar cyclone
While on COVID lockdown, a University of Sydney honours student has written a research paper on a star system dubbed one of the ''exotic peacocks of the stellar world''. (2020-10-11)

Chemical analysis demonstrates communal nesting in dinosaurs
The reproductive behaviors of birds are some of their most conspicuous and endearing qualities. From the colorful mating display of some birds, like peacocks, to the building of nests by nearly all birds, these are the characters we use to define birds and make them popular study subjects. (2016-10-28)

Males of great bustard self-medicate to appear more attractive to females
Males of great bustard consume small doses of poison with a dual purpose: to eliminate intern parasites and, especially, to look healthier and stronger before females, allowing them to achieve a greater reproductive success. A team of researchers from the Spanish National Research Council has now suggested for the first time that this function of self-medication could be a mechanism of sexual selection. The study results are published in the PLOS ONE journal. (2014-10-22)

Indian peafowls' crests are tuned to frequencies also used in social displays
Indian peafowl crests resonate efficiently and specifically to the same vibration frequencies used in peacock social displays, according to a paper published November 28, 2018 in the open-access journal PLOS ONE by Suzanne Amador Kane from Haverford College, USA, and colleagues. (2018-11-28)

Iridescence workshop promotes nature's nanotechnology
While nature's showiest subjects step out to promote reproductive success and survival with bright colors, flash and iridescence in feathers, scales, petals and wings, biologists, physicists, behaviorists and materials scientists will delve into what's behind all the bling at a workshop on (2008-01-16)

Coloring the heartbeat
Heart disease is one of the leading causes of death around the world. Finding easy early ways to screen for good drugs is vital (2017-11-05)

Sex and genetics: Why birds are unfaithful to their partners
Matings between relatives have negative consequences for the offspring, a phenomenon known as inbreeding depression. But what if you end up with a related partner? Initiated by a scientist at the Max Planck Research Centre for Ornithology, a study by an international team of scientists showed that social mates that are genetically similar use alternative reproductive behaviors to avoid paying the price of inbreeding. (Nature, Oct. 10th, 2002). (2002-10-10)

Biologists turn back the clock to understand evolution of sex differences
Male water striders benefit by mating frequently, females by mating infrequently: both have developed traits to give them the upper hand. The researchers modified a gene involved in the development of antennae in male water striders and found that as the antennae became more elaborate, mating success increased. The study is unusual in that it describes a direct linkage between known forces of selection, evolutionary change morphology, and its underlying genetic basis. (2012-05-03)

Fly mating choices may help explain variation across species
Scientists at the University of Stirling have shed new light on the impact of sexual selection on species diversity after studying the mating rituals of dance flies. (2018-09-19)

Fossil moths show their true colors
The brightest hues in nature are produced by tiny patterns in, say, feathers or scales rather than pigments. These so-called (2011-11-15)

Darwin was right: Females prefer sex with good listeners
Almost 150 years after Charles Darwin first proposed a little-known prediction from his theory of sexual selection, researchers have found that male moths with larger antennae are better at detecting female signals. (2017-05-26)

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