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Current Peacocks News and Events, Peacocks News Articles.
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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)

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)

Why do we choose our mates? Ask Charles Darwin, prof says
Charles Darwin wrote about it 150 years ago: animals don't pick their mates by pure chance -- it's a process that is deliberate and involves numerous factors. After decades of examining his work, experts agree that he pretty much scored a scientific bullseye, but a very big question is (2009-06-15)

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 barn swallow study reveals image makes the bird
In the world of birds, where fancy can be as fleeting as flight, the color of the bird apparently has a profound effect on more than just its image. A new study of barn swallows reveals it also affects the bird's physiology. (2008-06-02)

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)

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)

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)

Crickets on Hawaiian Island develop silent wings in response to parasitic attack
In only a few generations, the male cricket on Kauai underwent a mutation that rendered it incapable of using song, its sexual signal, to attract female crickets, according to a new study led by UC Riverside's Marlene Zuk, a professor of biology. Zuk's team found that even though the new male crickets' wings lack the file and scraper apparatus required for producing sound, the males are able to mate successfully with females, thus ensuring evolutionary success. (2006-09-22)

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)

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)

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)

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)

Females' Siren Song Initiates Courtship Duets In African Frogs, Columbia Biologists Find
When her eggs are ready to fertilize, the female South African clawed frog begins a clicking song that initiates a courtship duet with a nearby male that helps the partners find each other. It is among the rare instances in the animal kingdom where the female makes the first move. (1998-02-17)

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