The feathers of 100 million years of Burmese Amber are well preserved, the paleontologist has been able to study its structure and the birds that live today do not know anything about it.
In fact, it could have been a type of decoy, which fell into a predator's fall, like a lizard that escapes its escape.
Lumas, a 31-year-old Burmese amber (Cretaceous anberes), was analyzed by a group led by Late Xing, Paleontologist of Beijing Geological Sciences.
It seems Xing, for example, with the amber smash bursts of the brain, the 100-year-old Amberrean captured eight frogs in Amberra, found the oldest, and, of course, an epic Dinosaur Plate from Amber's Abyss.
The feathers are now included in this search's own list. The tail is called buzzards and feathers are stretching from the clutches of these old birds, sometimes more than birds.
Modern birds often have long clay feathers that are decorated with ornamentation and sterilization, which is why the Cretaceous birds thought it as well.
But even in decades when the feathers of the feathers of the Cretaceous birds are known, the species of fossilized fossils have been flat. This gives the focus less detail.
Amber specimens, most of which show what happened in pairs of feathers, are beautifully stained in three dimensions. In this way, the team has been able to recognize its rare morphology and how it could be used by birds.
"These steam fossil compression mode was fundamentally completely wrong. I was surprised when I was anchored in three dimensions," Pingtontologists Jingmai O & # 39; Connor paleontology and paleoanthropology Institute in Beijing said Science.
"The most weird feather I've ever seen is".
Rakis or middle-centered pen (which is known by other names, main rachis feathers, or RDFs) are the dominant ones. But as researchers now know, the rachis is very different in the closed cylinder that is seen in modern birds.
It is open at the bottom, like C- or U-shaped, with a larger size than feathers. Rachis could also be terribly thin – less than 3 millimeters (in some cases, a human cell is 7 mm in diameter above average). Still still, straight and rigid.
The researchers of the fine and rakas think that the cost of the pen grows lower: if the pen battery is available, as indicated by the clues.
For example, some RDF pen patterns indicate that feathers hit the stomach by force, while others did not detect a dead bird. According to the researchers, two of these features suggest that the pen was removed.
They were also not as colorful as expected from a sexy leather pen.
"The utility of visualization signaling," the researchers wrote on paper, "Removing the sources and silences contained in a large field, silence, defensive role and sacrificing visual signaling."
"The small amount of material involved in the construction of a long, open RDF wall can help reduce the energy costs of pen feathers, as long as the total body of their bears".
However, the rare form of the rachis observed in these feathers makes more questions, that is, whether the RDFs have evolved normally in the feathers, or that they have followed another evolutionary path.
This question, however, requires an excellent response to a high quality exceptional RDF anbole. Fingers scientists go through to get it soon.
The group's research has been published Paleogeography Magazine.