"Dinosaurs Flying in the Blue Sky" is authored by Xu Xing, a Chinese paleontologist.

Born in Xinjiang in 1969.

In 1992, he received a bachelor's degree in paleontology and stratigraphy from the Department of Geology, Peking University.

In 1995, he received a master's degree in vertebrate paleontology from the Institute of Vertebrate Paleontology and Paleoanthropology (IVPP), Chinese Academy of Sciences, and stayed at the institute to engage in research.

In 2001, he engaged in short-term research work at the Museum of Natural History in New York, USA.

In 2002, he received a doctorate in vertebrate paleontology from the Institute of Vertebrate Paleontology and Paleoanthropology.

Since 2003, he has been a researcher at the Institute of Vertebrate Paleontology and Paleoanthropology.

Mainly engaged in the research of Mesozoic dinosaur fossils and related stratigraphy. The main research directions are coelurosaur morphology, taxonomy and phylogeny, the origin of birds, the origin and early evolution of feathers, the origin of bird flight, and the morphology of ceratopsians.

biology and early evolution, morphology and systematic relationships of primitive ornithischians, ontogeny of ankylosaurs, and comparison of Jurassic and Cretaceous terrestrial strata.

Proposed the most detailed evidence and model to date on the evolution process and model of dinosaurs into birds; established the most comprehensive database for phylogenetic analysis of coelurosaurs, and proposed one of the most reliable systematic hypotheses; discovered coelurosaurs

Abnormal changes in the size of dragons on the evolutionary tree often lead to the convergent evolution of a series of key characteristics; it is found that different branches of coelurosaurs show opposite evolutionary trends, and these reverse evolutions also lead to the distribution of characteristics on the evolutionary tree

One of the reasons for the complexity and large amount of noise information; proposed the hypothesis that filamentous skin derivatives are widely distributed in theropod dinosaurs; reported the morphology of primitive feathers for the first time, described two branching forms of primitive feathers, and proposed the primitive

Three stages of feather evolution; the first report of the existence of flight feathers in animals other than birds, providing key information for establishing the early evolutionary sequence of feathers; the first report of theropod dinosaurs that may have arboreal characteristics, and proposed

In the process of evolving into birds, the hypothesis of an ecological transformation was hypothesized. Theropod dinosaurs with preliminary flight capabilities were reported for the first time, and it was proposed that dinosaurs may have experienced a four-winged stage, becoming arboreal and flying birds.

Provided the first solid evidence for the theory of the origin of gliding; discovered the most primitive therizinosaur; reported the world's oldest ceratopsian; published the first quantitatively restored branch tree of the therizinosaur superfamily; reported

The world's first uncontroversial herbivorous theropod dinosaur was discovered; the world's smallest Ankylosaurus specimen was reported.

In recent years, it has undertaken a number of scientific research projects from the National Natural Science Foundation of China, the National Science Foundation and the National Geographic Society.

Published more than 40 academic papers (11 published in the British "Nature" magazine, cited 344 times by SCI publications).

In 2001, he was funded by the National Outstanding Youth Fund and selected into the Toyota Project of the National Geographic Society, becoming one of the 11 selected scientists in the world.

In April 2007, Xu Xing won the title of Outstanding Youth of the Chinese Academy of Sciences.