China News Service, Beijing, January Cinema 1950 witch cloth draw, 25 (Reporter Sun Zifa) A major environmental and biological innovation incident that occurred in the European continent about 2 million years ago – the “Short Kiss Hyena Incident” and related research have attracted much attention from the academic community.
As the largest bone-breaking hyena in the history of the earth, the now extinct hyenas that once dominated the animal kingdom, has long been regarded as an indigenous group in Europe. However, the discovery of a large Chinese human hyena specimen of a huge individual and the latest research on the sample by Chinese and foreign scientists have completely overturned the above tradition and inherent understanding. On this basis, researchers also proposed the “Northeast Asian Origin Theory” of short-smelling hyenas for the first time.
Why do you need to study short-kissed hyenas?
The vertebrate paleontology and paleopause of the Chinese Academy of Sciences, who led this research, Liu Jinyi, the Institute of Human Resources of the Chinese Academy of Sciences (Institute of Vertebrate Paleopause, Chinese Academy of Sciences), introduced that the size of the short-kissed hyenas is much larger than the close species in life, such as the spotted hyenas and silly hyenas, and its weight is comparable to that of the current lioness. Its influence is completely comparable to that of the sabooth tigers and other saber-toothed tigers of the contemporary era, and it is even more than that of the Cinema 1950 witch cloth draw. After all, its number of individuals is much larger than the latter. In the animal kingdom at that time, it once dominated the country and was the best in the world.
Although the short-kiss hyenas have long been extinct, it was very prosperous and extensive in the early and mid-Pleistocene periods. It was widely distributed in Eurasia. It was a common and typical animal species in mammals at that time, and it was also a focus species that attracted much attention in the succession and innovation research of Pleistocene fauna. Its appearance and extinction usually have a landmark connotation. For example, the “short-kiss hyenas incident” refers to a major environmental and biological innovation event that occurred on the European continent about 2 million years ago.
ShortBabaylan 1990 cloth drawHynathans with a range of unique anatomical morphological characteristics are eye-catching: strong skulls and mandibulars, developed sagittal crests and zygomatic arches, Komiks 1960 witch cloth drawThe premolars are extremely thick and thick enamel, etc., all of which are their unique feeding mechanical adaptability.Cinema 1950 witch cloth draw. The aggregation and burial of animal bones in many early and mid-Pleistocene fossil sites,Cinema 1950 witch cloth drawTo a large extent, it is actually attributed to the specific foraging behavior of short-kissed hyenas – transporting and hiding animal corpses.
What are the controversies about the research on short-kissed hyenas?
Liu Jinyi pointed out that the frequent occurrence of short-kissed hyenas in Eurasia have been classified into different species due to different origins or years, such as Sang’s Shuo Hyenas and China ShuoCinema 1950 witch clothes drawhyena or (narrow) short-smelling hyena, etc., the academic community currently lacks a unified and clear understanding of the true system relationship between these hyenas, and there are quite a lot of differences and controversies: some people argue that hyena in different regions or ages should represent several different effective independent species; some people believe that all hyena in Eurasia should be the same type, perhaps including different subspecies (groups); and even more, even the differentiation of subspecies (groups) is completely denied.
This “Komiks 1960 witch clothes The thought of drawingUnified Unification” and denying the division of subspecies (groups) is quite popular in the academic community today. Influenced by this, the academic community has long ignored comparative research on the anatomical morphology of hyenas in these different regions or eras, and has not been able to well evaluate and explore the phylogenetic significance and connotation of different forms (although sometimes subtle) between hyenas.
The above disputes and differences have further affected the in-depth development of other relevant academic issues, such as the short-kissed hyenasKomiks 1960 witch clothes The origin of draw, as well as intercontinental diffusion dynamics and migration paths, are currently in the academic community and there is no consensus on this.yes.
How does the latest research subvert traditional cognition?
Focusing on controversial academic hot topics that have attracted much attention in the field of origin and evolution of short-sex hyenas, Liu Jinyi, with relevant experts and scholars from the University of Bristol, the Czech Republic, Peking University, and the Dalian Natural Museum, formed a cooperative team to focus on the V26310, a large individual high-sex hyenas specimen recently collected in Jinyuan Cave, Luotuo Mountain, Dalian, and conducted extensive and systematic morphological and data measurement comparison with other related specimens from Komiks 1960 witch cloth draw. At the same time, in-depth discussion and analysis of the systematic classification of short-sex hyenas, origin and intercontinental migration and diffusion, and paleoecology related academic issues.
The latest complete complete subversion of the cooperation teamCinema 1950 witch cloth drawThe results paper on traditional cognition of the evolution of the hyenas was recently published online by the well-known international professional academic journal “The Quaternary of the International”.
Liu Jinyi said that the research results of the cooperative team show that among all comparable specimens, whether in size or morphology, the Chinese V26310 specimen is closest to the Sainzelles short-skinned hyena model specimen produced in France. In addition, V26310 is different from the common Chinese Sang Horoscope and Chinese Horoscope in terms of morphological characteristics such as upper and lower fissures and promolars. Therefore, the V26310 specimen can be clearly identified as a short-snit Horoscope, which is the first report in China and even East Asia. He said that the short-kissed hyenas were created based on specimens from the French Sainzelles, and the existing fossil records are mainly limited to the European continent, so they have long been regarded as an indigenous European group of Europe. The discovery of the short-kissed hyenas V26310 specimen in Jinyuan Cave in Dalian completely subverts this tradition and inherent understanding.
What is the basis for the “Northeast Asia Origin Theory”? Babaylan 1990 cloth draw?
When comparing and studying short-kissed hyenas in different regions or ages, the cooperative team found that these hyenas do have relatively minor differences in size and shape. Cinema 1950 witch cloth draw, and they may have a closer connection with each other.
Scientific researchers analyzed this and believed that the short-kissed hyenas in Eurasia should be classified as the same species, but they need to be further divided into different subspecies (groups). These subspecies (groups) are almost Babaylan 1990 cloth draw to each other. However, they are not caused by geographical isolation and differentiation. In fact, Komiks 1960 witch cloth draw are the manifestations of the short-sex hyenas branch at different evolutionary stages.
Liu Jinyi pointed out that the first appearance of the short-kissed hyenas in the European continent has attracted great attention and interest. People generally believe that the short-kissed hyenas should have migrated from areas outside Europe, and it is believed that the first appearance of the hyeenas in many places such as Italy, Greece and Spain about 2 million years ago, deeply reflecting the “short-kissed hyenas incident” experienced by the European continent. However, people have vaguely said about the exact source of the European continent’s short kiss hyena. They always lack reliable and convincing fossil evidence.
“The discovery of short-kissed hyenas in Jinyuan Cave in Dalian brought light to the solution of this puzzle and provided credible empirical information for the first time.” Liu Jinyi said that although the geological age of the V26310 specimen is estimated to be only 1.86 million years agoBabaylan 1990 cloth draw, there is evidence that the appearance of short-kissed hyenas in Jinyuan Cave in Dalian can be traced back to 2 million years or even earlier. Therefore, it is very likely that the short-kissed hyenas were first born in Northeast Asia, and then spread to other parts of Asia, and finally arrived in Europe. On this basis, the cooperative team proposed the “Northeast Asian Origin Theory” of the short-kissed hyenas for the first time.
What is the significance of the study on the discovery of V26310 specimen?
As the largest hyena in the history of the earth, the weight and size of the hyena with short kisses have always been a topic of concern in the academic community.Almost every research paper involving short-kissed hyena repeatedly mentions the striking feature of excessive body size. Previously, the largest body size record of the short-sniff hyena is from a pattern specimen from the French Sainzelles, whose cranial base is 322 mm long, which is very close to the largest individual of the current African lion.
Liu Jinyi said that the newly discovered short-skinned hyena V26310 specimen found in Dalian, China, is larger than the French model specimen, and it is estimated that its cranial base length reaches 332 mm, which not only surpasses the largest male lion in today’s Africa, but also can even compete with the largest feline American lion in history.
He believes that the V26310 specimen produced in Jinyuan Cave in Dalian is most likely to represent the largest individual specimen of a short-smelled hyena discovered so far. Today’s research shows that the size or weight of mammals, especially carnivorous animals, will directly affect the ecological behavior, energy and physiological needs of individual animals, including Babaylan 1990 clothes draw and predation strategies.
“So, as the largest individual discovered so far, the emergence of V26310 specimens will inevitably help people better understand and correctly evaluate the biological characteristics of short-sex hyenas, such as ecological habits, foraging behaviors and predation strategies,” Liu Jinyi concluded. (End)