China News Service, Beijing, January 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 huge hyena specimen of a very large individual in Dalian, China, and the latest research on the sample by Chinese and foreign scientists has completely overturned the above tradition and inherent understanding. On this basis, the researchers also proposed the “Northeast Asian Origin Theory” of the Komiks 1960 witch cloth draw for the first time.
Why should I study the short kiss of a huge hyena in Cinema 1950 witch cloth draw?
The vertebrate paleontology of the Chinese Academy of Sciences, who led this research, and researcher Liu Jinyi from the Institute of Paleomans of the Chinese Academy of Sciences (Institute of Vertebrate Paleopause, Chinese Academy of Sciences) introduced that the size of the hyenas is much larger than the close species in life, such as the spotted hyenas and the white hyenas, and its weight is equivalent 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 sabooth tigers. 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-kissed hyenas have long been extinct, they were very prosperous and extensive in the early and mid-Pleistocene periods. They were widely distributed in Eurasia. They were a common and typical animal species in mammals at that time, and were also a focus species that attracted much attention in the succession and innovation of Pleistocene fauna. Their appearance and extinction of Babaylan 1990 cloth draw usually have a landmark connotation. For example, the “short-kissed hyenas incident” refers to a major environmental and biological innovation event that occurred on the European continent about 2 million years ago.
The short-skinned hyena has a series of unique anatomical morphological characteristics that are eye-catching: strong skulls and mandibles, developed sagittal crests and zygomatic arches, extremely thick premolars and thick enamels, etc.”https://comicmov.com/”>Komiks 1960 witch cloth draw is a mechanical adaptive manifestation of its unique diet. The gathering and burial of animal bones in many early and mid-Pleistocene fossil sites is largely due to the specific foraging behavior of short-kissed hyenas – transporting and hiding animal bones.
What are the controversies about the research on short-kissed hyenas?
Liu Jinyi pointed out that the short-kiss hyenas that frequently appear in Eurasia have been classified into different species due to different origins or ages, such as the Sang family’s hyenas, the Chinese hyenas or (narrow) short-kiss hyenas. At present, the academic community 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 advocate that hyenas in different regions or ages should represent several different effective independent species; some people believe that all hyenas in Eurasia should be the same type, and perhaps include different subspecies (groups); and even more, even the differentiation of subspecies (groups) is completely denied.
This kind of “unification” and denies the division of subspecies (groups) is quite popular in today’s academic circles. Influenced by this, for a long time, the academic community has neglected comparative research on the anatomical morphology of hyenas in these different regions or ages, and has not been able to well evaluate and explore the phylogenetic significance and connotation of different morphology (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 origin of the short-skinned hyena and the spread between the continents. Komiks 1960 witch cloth draw state and migration paths. There are many different opinions in the academic community about this at present and there is no consensus.
How does the latest research subvert traditional cognition?
Focusing on the origin and evolution of short-kissed hyenasKomiks 1960 witch cloth drawThe controversial academic hot topics in the research field, Liu Jinyi, together with the University of Bristol, the National Museum of Prague, the Czech Republic, Peking University, and the Dalian Natural Museum, and other related experts and scholars to form a cooperative team to collect the newly collected Jinyuan of the Camel Mountain in Dalian.A large individual hyena specimen V26310 in the cave was focused on research, and extensive and systematic morphological and data measurement comparisons were conducted with other related specimens from Eurasian Cinema 1950 witch cloth draw. At the same time, in-depth discussion and analysis of the systematic classification of hyena, origin and intercontinental migration and diffusion, and paleoecology related academic issues.
The latest complete and thorough analysis of the Cinema 1950 witch cloth drawThe results paper on the evolution of hyenas in the study of traditional cognition of the evolution of 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-kiss hyena pattern specimen produced in France. In addition, V26310 is different from the common Chinese Sang Horny Hyena and Chinese Horny Hyena in terms of morphological characteristics such as upper and lower fissures and promolars. Therefore, the V26310 specimen can be identified as a short-skinned Horny Hyena in Cinema 1950 witch cloth draw. This is the first report in China and even East Asia.
He said that the short-kissed hyenas were created based on the French SaBabaylan 1990 cloth drawinzelles specimen, and the existing fossil record is mainly limited to the European continent, so it has long been regarded as an indigenous group of Europe. The discovery of the short-kissed hyenas V26310 specimen in Jinyuan Cave in Dalian completely overturned the tradition and inherent understanding of Babaylan 1990 cloth draw.
What is the basis for the “Northeast Asia Origin Theory”?
Comparatively study the shortness of each region or ageWhen kissing the huge hyena, the cooperative team found that there are indeed several subtle differences and differences in size and shape of these hyenas, and they may have a relatively close relationship with each other. Based on this, researchers believe 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) almost form a branch with ancestral evolutionary relationships to each other, but they are not caused by geographical isolation and differentiation, but are actually manifestations of the branch of the hyena hyena at different evolutionary stages.
Liu Jinyi pointed out that the first appearance of short-kissed hyenas in the European continent was once aroused great attention and interest. People generally believe that 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 described the exact origin of the European continent’s short kiss hyena, and have always lacked reliable and convincing fossil evidence.
“The discovery of short-kissed hyenas in Jinyuan Cave in Dalian has brought light to the question of Babaylan 1990 cloth draw has brought light to the question 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 ago, Babaylan 1990 cloth draw, there is evidence that the emergence 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 V26310 specimen discovery research?
As the largest hyena in the history of the earth, the weight and size of the hyena with a short kiss have always been a topic of concern in the academic community. Almost every research paper involving hyena with a short kiss has repeatedly mentioned the eye-catching feature of an extremely large body. Previously, the short-kissed hyena had a relatively reliable maximum body size recordKomiks 1960 witch cloth draw comes from a French model specimen with a cranial base of 322 mm, which is very close to the largest body of the existing African lion.
Liu Jinyi said that the newly discovered short-sex hyena V26310 specimen in Dalian, China, is larger than the French model specimen in both the length of the teeth and the thickness of the jaw bone. According to estimates, href=”https://comicmov.com/”>Komiks 1960 witch cloth draw Its cranial base length reaches 332 mm, which is not only beyond the largest hero in today’s Africa. drawindividuals of lions can even be compared with the largest feline American lion in history.
He believes that the V26310 specimen produced in Jinyuan Cave in Dalian is likely to represent the largest individual specimen of short-sex hyenas 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 animal individuals, as well as predation strategies.
” Therefore, as the largest individual discovered so far, the emergence of the V26310 specimen will surely 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)