NEW HAVEN, Conn., April 7 (UPI) -- Yale University biologists say they've determined the brightly colored plumage of some birds is created by nanostructures that have a sponge-like appearance.
... evidence for the evolution of a new species. Birds use plumage colour to recognize and select potential mates ... species. Other flycatchers in the Solomon Islands also vary their plumage colour, but the genetic basis is not always as clear ...
... , researchers have tried to explain the enormous diversity of plumage colour traits in birds. Now researchers ...
... , researchers have tried to explain the enormous diversity of plumage color traits in birds. Now researchers ...
... (self-preening) or other birds' (allo-preening) plumage, it is easily understandable how these preening activities could facilitate ...
... on the populations depends, at least in part, on the amount of plumage whose colouring is generated by pheomelanin, one of the two ... expert adds. The birds of Chernobyl with the most pheomelanism (with the most plumage coloured by pheomelanin) were judged to be the "most negatively" affected ...
... ) -- In many bird species males have a more elaborate plumage than females. This elaborate plumage is often used to signal body ... rivals or to attract potential mates. In many cases plumage colouration also depends on the hormone testosterone. Christina ...
The complexity of the fractal geometry of a bird's plumage reveals its level of fitness, according to a new study published in Proceedings of the Royal Society B today.
... traces of the original 'dinobird' and dilute traces of plumage pigments in the 150 million-year-old ...
... Olle Håstad. The significance of birds’ plumage, both in terms of richness of colour and particular ...
... . "The speed with which the internal qualities of the bird were affected by the plumage color manipulation was surprising to me," added ...
... pigment. "Birds frequently have spectacularly colored plumage which are often used in camouflage and courtship display," said Vinther ...
... , Schmidt immediately noticed differences in color and plumage, and realized the newly collected birds might ...
... -- or seductive attributes like a cardinal's vibrant plumage or a bullfrog's deeply resonant baritone -- are known ...
... to the costs of molting into their colorful sexually dimorphic plumage. Adult males showed little variation ...
