Tag: "peacock" at biology news

UC Davis scientists' groundbreaking research: Mate-attracting chemicals

...estions. "In native moth populations, such as the peacock moths, sex pheromones are so sensitive that males can detect female moths from several miles away," Leal said. "With the discovery of the first sex pheromone from the silkworm moth (Bombyx mori), it became evident that insects rely on compounds call...

Protein folding physics, nanohandles, sunscreen for algae and classical quantum weirdness

...hat drive photosynthesis. The photonic plates join peacock feathers, beetle carapaces, and butterfly wings in the growing catalog of naturally occurring structures that control light using photonic crystals....

Evolutionary forces explain why women live longer than men

... social status and females. From the tail of the peacock to the blinged-out SUV, males compete aggressively for female attention, and that costs them something. In nature, it means riskier physiology and behavior for the males, such as putting more resources into flashy plumage or engaging in physical spar...

Behavioural ecologists elucidated how peahens choose their mates, and why

Since Darwin, the peacock exhibiting an elongated tail composed of ocelli ha...y the expression of the behaviour. To be chosen, a peacock has to be beautiful but also has to be able to show how beautiful he is. It is not surprising that f...

Rare bird 'sings' with its feathers to attract a mate

...exual selection," said Bostwick, pointing out that peacock wings are another example of an adaptation due to sexual selection. Darwin mentions the club-winged manakin in "The Descent of Man," his treatise on sexual selection and how characteristics that attract the opposite sex are passed down to the next ge...

Programming organic transistors with light; the unusual origin of peacock brown; rotating nanowires

...tonic crystals. Mimicking the photonic crystals in peacock tail feathers could lead to new ways to manipulate light in cutting edge optical instruments. In addition, the discovery points the way to new paints and coatings that are not susceptible to the chemical changes that can degrade pigments over time. ...

Study in Royal Society journal on heritability of female orgasm

...by predator intimidation an experimental study of peacock butterfly defence against blue tits by Dr A Vallin... butterfly eyespots has so far been anecdotal. The peacock butterfly, Inachis io, is perfectly edible and harmless. But when harassed it suddenly exposes consp...

Radar tracking reveals that butterflies follow decisive flight paths

...weighing only about 12mg (4-8% of body weight), to peacock or small tortoiseshell butterflies. This allows her to use harmonic radar to track the butterfly's position accurately up to 1km away. Previous studies had to use visual observation (difficult over 50m) or indirect mark-recapture techniques. Butterf...

Wisconsin scientists find portal to show animals evolve

MADISON - Like the gaudy peacock or majestic buck, the bachelor fruit fly is in a race against time to mate and pass along its genes. And just as flashy plumage or imposing antlers work to an animal's reproductive advantage, so, too, do the colored spots that decorate the wings of a...

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(Date:7/31/2014)... An experimental vaccine protected 100 percent of animal models ... difficile , which causes an intestinal disease that kills ... of print in Infection and Immunity . ... and non-human primates against the purified toxins produced by ... orogastric spore infection, a laboratory model that mimics the ...
(Date:7/31/2014)... discovered the photovoltaic effect in 1839, humankind has sought ... for its own purposes. In a new research report ... FASEB Journal , scientists may have uncovered ... by focusing on a naturally occurring combination of lipids ... persistence over time and across speciessuggests that this specific ...
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