<div date-thumb = "https://3c1703fe8d.site.internapcdn.net/newman/csz/news/tmb/2019/bluecolorton.jpg" data-src = "https: //3c1703fe8d.site.internapcdn Eocoracias brachyptera fossil samples used for this study. The rich black texture on the surface is petrified bird plumage The fossil is stored in the Science Research Institute of Schenkenberg.
Researchers at the University of Bristol, headed by Phare Barbarowic, currently at Sheffield University, have shown that blue feather melanosomes are very different from melanosomes that are feathers, expressing black, reddish-brown, brown and overflowing, but overlapping significantly with some gray feather melanosomes.
Looking at the coloration of fossil fossil replicas and reconstructing which color is most likely to be present in the fossil specimen, they are able to distinguish the significant melanosomes for the gray and the blue color. , which led to the reconstruction of prehistoric Eocoracias brachyptera as a predominantly blue bird.
Fare Barbaboric said: "We have found that melanosomes in blue feathers have a different size in most of the color categories, and therefore we can limit fossils may have been blue initially."
"Overlapping with gray may suggest some common mode of chanism about how melanosomes are involved in the formation of gray, and how these structural blue colors are formed.
"Based on these results in our publication, we have also suggested a potential evolutionary transition between blue and gray."
The research team now needs to know which birds are more likely to be blue based on their ecology and lifestyle. Blue color is common in nature, but the ecology of this color and its function in bird life is still elusive.
Fare Barbaraci added: "We need to understand how to make a gray color, much different in birds than in mammals. We believe that this is related to how the shape of the melanoma can lead to a kind of self-organizing a process in the feathers and the surface tension of melanosomes pulls them into certain configurations inside the feathers, it is formed. "
Scientists discover how birds and dinosaurs have evolved to dazzle with color displays
"Characterization of melanosomes involved in the production of non-diffusive structural colors of feathers and their discovery in the fossil record" F. Babarovich, M. Puttick, M. Zaher, E. Learmonth, EJ Gallimore, F. Smithwick, G. Mayr and J. Vinther, Interface rsif.royalsocietypublishing.or … .1098 / rsif.2018.0921
University of Bristol
Blue color tones in fossil prehistoric feathers (2019, June 25)
drawn up on 25 June 2019
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