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 but once dominated the animal kingdom, the short-kissing hyena has long been regarded as an indigenous group in Europe. However, the discovery of a specimen of a huge hyena 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, researchers also proposed the “Babaylan 1990 cloth draw Northeast Asian Origin Theory” for the short kiss of the giant hyena.
Why do you need to study short-kissed hyenas?
Researcher Liu Jinyi of the Institute of Vertebrate Paleontology and Paleoanthropology of the Chinese Academy of Sciences (Institute of Vertebrate Paleontology of the Chinese Academy of Sciences) who led this research said that the size of the short-kissed hyenas is much larger than the close species in life, such as the spotted hyenas and the white hyenas, and its weight is comparable to that of the living lioness. Its influence is completely comparable to that of the saboo tigers and other saber-toothed tigers in the Cinema 1950 witch cloth draw. It is even more than that. After all, its individual number 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 widely distributed in the Eurasian continent in the early years and the Middle Pleistocene periods. They were a common and typical animal species in the mammals of Cinema 1950 witch cloth draw at that time, and were also a focus species that attracted much attention in the succession and innovation research of Pleistocene fauna. Their appearance and extinction 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.
Cinema 1950 witch cloth drawThe short-sex hyena has a series of unique anatomical morphological characteristics and is eye-catching: the strong skull and mandibular, the developed sagittal crest and zygomatic arch, the extremely thick premolar teeth and thick enamel, etc., are all manifestations of its unique feeding mechanical adaptability. The gathering and burial of animal bones in many early and middle Pleistocene sites is largely due to the specific foraging behavior of short-kissing 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 their origins or ages, such as the Sang Shi Shun Hyenas, Chinese Hyenas or (narrow) short-kiss hyenas, etc. Komiks 1960 witch cloth draw, etc. Komiks 1960 witch cloth draw The academic community currently lacks a unified and clear understanding of the true system relationship between these hyenas, and differences and differences. draw is quite controversial: some people argue 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, perhaps including different subspecies (groups); and even the differentiation of subspecies (groups) was completely denied.
This kind of “unification” and denies the division of subspecies (groups) is quite popular in today’s academic circles. Influenced by this Babaylan 1990 cloth draw, the academic community has long ignored comparative studies on the anatomical morphology of hyenas in these different regions or chronology, 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 hyenas, the spread dynamics and migration paths between the continentsCinema 1950 witch cloth draw, etc., there are many different opinions in the academic community about this, and there is no consensus. How can the latest research subvert traditional cognition? Focusing on controversial academic issues that have attracted much attention in the field of origin and evolution of short-sex hyenasKomiks 1960 witch cloth drawHot topics, Liu Jinyi, with relevant experts and scholars from the University of Bristol, the Czech Republic, the National Museum of Prague, Peking University, and the Dalian Natural Museum, to focus on research on a very large individual hyenas specimen V26310, which was recently collected in the Jinyuan Cave of Luotuo Mountain, Dalian, and other Eurasian continentKomiks 1960 witch cloth draw extensive and systematic morphological and data measurement comparisons were carried out, and the systematic classification of hyenas, origin and intercontinental migration and diffusion, and paleoecology and other related academic issues were deeply developed. Discussion and analysis of draw. The latest paper completed by the cooperative team that completely subverts the traditional cognition of the evolution of the hyenas, recently published online by the well-known international professional academic journal “The Quaternary 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 Komiks 1960 witch clothes produced in Komiks 1960 witch clothes DrawFrance’s Sainzelles short-kiss hyena pattern specimens. In addition, V26310 is different from the common Chinese Sang’s hyena and Chinese hyena in terms of morphological characteristics such as upper and lower fissures and promolars. Therefore, the V26310 specimen can be clearly identified as short-kiss hyena, which is the first report in China and even East Asia.
He said that short-kiss hyenaBabaylan 1990 cloth drawHyperThe discovery of the Jinyuan Cave of Dalian, the Cinema 1950 witch cloth draw in Europe has completely overturned this tradition and inherent understanding.
What is the basis for the “Northeast Asia Origin Theory”?
When comparing and studying short-kissed hyenas in different regions or ages, the cooperative team found that these hyenas do have several subtle differences and differences in size and shape, and they may have a relatively close relationship with each other.
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) 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 has attracted great attention and interest. It is generally believed that Komiks 1960 witch cloth drawThe short-kissed hyenas should have migrated from outside Europe, and it is believed that the first appearance of the hyeenas in many places such as Italy, Greece and Spain 2 million years ago deeply reflects 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 brought dawn 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 ago, there is evidence that the emergence of short-kissed hyenas in the large Jinyuan Cave can be traced back to 2 million years or even earlier. Therefore, short-kissed hyena is most likely born at firstNortheast Asia then spread to other parts of Asia and eventually arrived in Europe. On this basis, the cooperative team proposed the “Northeast Asian Origin Theory” of short-kissing giant hyena 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 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 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, both in the length of the teeth and the thickness of the jaw. 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 compare 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, directly affects the ecological behavior, energy and physiological needs of individual animals, as well as predation strategies.
“So, 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 the short-skinned hyena, such as ecological habits, foetid behavior and predation strategies,” Liu Jinyi concluded. (End)