His dagger-like teeth with Groove structure, maybe used to help snap Dragon Chinese bird birds will make
1 origins
There are slots teeth hidden secrets
Northeastern University geology professor of Gong en General, United States University of Kansas in Bornheim (DavidBurnham)-member research team in December 2009 issue of the Academy of Sciences of the United States (Proceedings of the NationalAcademy ofSciences) magazine that they had found a fossil found in China the Dragon bird, can prove this prehistoric animals toxic teeth, the venom prey.
In 1999, at Jehol biota of a discovery point, this underground asleep 1.25 billion years of the early Cretaceous fossil bird Dragon in China, which will contain a fossil has save complete skull and bones.
The CAS Institute of ancient spine and paleontological research fellow xuxing said, the Chinese Dragon bird (Sinornithosaurus) exceeding 1 m in length, and Turkey. Chinese Dragon bird belonging to Chi Ronco. In the movie "Jurassic Park" "Raptor" is a member of this section. In the past for a long time, cruise Ronco dinosaur have been described as a body covered with scales of guy, just like with the two legs of the lizard. But recent studies show that many species are cruise Ronco has feathers, including Raptor.Two years ago, Gong Yan Pu and others in the dromaeosaurid class dinosaurs for system research, the accident found
that Chinese Dragon bird and thin long teeth, has long had a Groove. These teeth are very sharp, like a machete as backward bends, teeth with a cross-cutting above all teeth grooves. Gong en General said: "these teeth are very long, like a sword, looks like a snake's Venom. " Bornheim indicated that they found the gouges, teeth, and also find other structures on the skull, it may put the venom glands in the palate bone recesses, pass to the makers of the Groove for the transmission of a venom is able to enter the gouges teeth.Bornheim, the structure and the serpent in teeth after, as well as the venom class description of the structure of the teeth are very similar.
While Australia Melbourne University biologists Frei (BryanFry) at the beginning of 2009 has published papers that he found como more Dragon's mouth toxic glands. Bornheim said that Frey of his great inspiration: "we see the article says there are many Dragon Como, iguanas are peaceable with venom venom, so suddenly understand: ' the original Chinese bird Dragon palate dry this Groove is used '. ”2 inference
Anesthesia swallow prey hygiene
In the movie "Jurassic Park" appears pair Ridge lung, flows to the venom.
However, the scientific community believe that this is only an illusion. Chinese bird Dragon is first considered likely to allow the toxicity of dinosaurs. Before, people already know Chinese Dragon with a feather of birds. It also has a similar bird's pelvis and limbs, and very long arms. A tool called "Dave" fossils show, Dragon Chinese bird feathers covering the whole body, contains the eyes in front of the head, neck, hands, legs, tail end, diamond block, like archaeopteryx fossil feather. Chinese bird Dragon's mouth is very narrow, while Zhang is open. Bornheim take these features into your own reasoning, givesthe regarding China's bird-long description of the way of life. He believed that this kind of dinosaur will climb to the top of the tree, from behind the sudden attack their prey. It requires a whole put the game engages to make drugs, at the same time, because the Groove on the fangs cannot pressure injection, so the effect is not high, because it's fangs and cannot kill prey, but rather let the game cannot move. Bornheim said: "you haven't seen it, it's from your behind the branches of the beat down, give you a surprise. It wasn't your entire fangs into your skin, venom will infiltrate your skin. "This game will soon be covered with spasm, and can't move. He even thought that Chinese bird Dragon fangs are intended for the manufacture of predatory birds and "." It can cut through thick feathers birds, penetrated the skin 4 to 6 mm and the depth enough for venom into birds of blood circulation.By studying other dromaeosaurid fossils of dinosaurs class, Bornheim concluded that other dromaeosaurid class dinosaurs may also cause the virus, including the famous long "four wings", to be able to glide the Gu's small pirates Dragon.
He said: "the venom of use may be larger than we previously thought wider, more primitive" may birds, dinosaurs, crocodile and common ancestors pterodactyl — — an outline of the early lung following early animals will use venom. Before, paleontologists think only of snakes and lizards of common ancestors — squamous cell lung outline of animals under may already start using venom. Perhaps, the makers of use than people imagine more distant, more widely.3 controversy
More evidence is needed to verify
Gong Yan Pu and Bornheim, and others
A published research results, raises the controversial. Think como more Dragon makes the poison of Fred course support "dinosaur makes thepoison", he said: "this really is a great find, I read this article when I feel!"But there are also people who do not recognize Gong Yan Pu and Bornheim conclusions.
Science, freelance writer, Whitaker (BrianSwitek) said: "now that previously on toxic dinosaurs never understand, I think we need more evidence (evidence of dinosaurs will enable poison). This article considers China bird Dragon's teeth like poisonous reptiles, but we can't know the teeth on the slot is used for the transmission of venom, or conveying something else. "Devoted to the study of carnivorous dinosaurs Holz (ThomasHoltz Jr) said:" I think this article is very weak evidence, is not to say that it is not possible, but the evidence is insufficient. ”Holz believes that China's "bird Dragon scimitar-shaped teeth" in animal foot dinosaur, is not new, it's teeth really Groove, but this may be in order for the game of blood can be discharged in time to avoid the "sucked" teeth and prevent it from the game, this body pulled out and bayonets "blood bath" is the same; and the recesses on the palate may be all animal foot dinosaur eyes preceded by an extension of the balloon, the makers of "conveying channels" or even may not be a physiological structure, just torn from the accident.
Fred retorted that is rare to non-toxic animal teeth with Groove.
Mandrillus is not one of the many examples, it's teeth grooves as bayonet's bloodstream. However, xiao long grooved Grill in front of all the teeth with Groove, long in the back of the animal are makes poison. About the history of "poisonous reptiles", the future must also be in dispute.【 Link 】
Their names don't mix
This article of the leading Chinese bird Dragon easily and another dinosaur "China Dragon bird" confused.
Chinese bird called the "Dragon" genus Sinornithosaurus, the last few letters is "saurus", that is, the "D
ragon" dinosaurs; China Dragon bird genus named "Sinosauropteryx", the last few letters is "pteryx" is Latin for "the birds".Chinese Dragon bird, while belonging to Chi Ronco China Dragon bird belonging to the beautiful jaw Ronco.
Although the "birds" Dragon "Dragon", but in fact has been and is very close to the birds, it certainly has a similar birds of a feather, but the body has many characteristics of birds. Chinese bird Dragon forelimb is no longer like most animal foot dinosaur-like stretch of abdominal forward to, but rather like bird's wings, like the up to the side. It is now found in the feathered dinosaurs in the nearest birds.But China Dragon birds have modern birds of feather remains controversial, it is certainly more than the Chinese Dragon bird more original, not like birds.
The reason why it has been named the "bird", because of its discovery's earlier, then on feather dinosaur also lack of awareness, the discoverer with some excitement it named the "bird".Either China or China Dragon Dragon bird and bird, the beginning of its name is a "sino" is Latin for "China".
But they called "China", one called "China", seemed to favours distinctions, but sometimes it makes regular readers feel more difficult to remember.
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