China News Service, Beijing, January 25 (Reporter Sun Zifa) A major environmental and biological innovation incident 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, 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?
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 the research, said that the short-kissed hyena body is much larger than the current close species, such as spotted hyena and white hyena, and its weight is comparable to that of the current lioness. Its influence is completely comparable to that of the saboo tigers and other saber-toothed tigers of the contemporary era. Cinema is even more than that. 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, they were very prosperous and widely distributed in Eurasia during the early and mid-Pleistocene periods. 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 research of Pleistocene fauna. Their 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.
The short-skinned hyena has a series of anatomical morphological characteristics that attract attention: the strong skull and mandibular, the developed sagittal crest and zygomatic arch, the extremely thick premolars and thick enamel, etc., are all mechanical adaptive manifestations of their unique diet. The gathering and burial of animal bones in many early and mid-Pleistocene fossil sites is largely due to the specific foraging 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. There is a lot of differences and controversy: some people advocate the real-life system of Komiks.com/”>Babaylan. href=”https://comicmov.com/”>Komikshyenas should represent several different effective independent species; some people believe that all giant hyenas 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 kind of “unification” and denies the division of subspecies (groups) is quite popular in today’s academic circles. Influenced by this, 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 short-skinned hyena, the spread dynamics and migration paths between the continents, etc. There are currently many different opinions in the academic community.
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 in Eurasia. 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 achievement paper completed by the cooperative team that completely subverts the traditional cognition of the evolution of the hyenas, was 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: in all comparisonsAmong the specimens, regardless of 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 hyena and Chinese hyena in terms of morphological characteristics such as upper and lower fissures and the apical apical of the premolars. Therefore, the V26310 specimen can be clearly identified as a short-snit hyena, which is the first report in China and even East Asia. He said that the short-kiss hyenas were created based on specimens from France’s Sainzelles, and the existing fossil records of Komiks are mainly limited to the European continent, so they have long been regarded as an indigenous group of Europe. The discovery of the short-kiss hyenas V26310 specimen in Jinyuan Cave in Dalian completely overturned the tradition and inherent understanding of Cinema.
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 closer connection 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 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 described the exact origin of the European continent’s short kiss hyena, and there is always a lack of 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 timematerial. 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 the short-kissed hyenas in the Jinyuan Cave in Dalian can be traced back to 2 million years or even earlier. Therefore, the short-kissed hyenas are most likely to be born in Northeast Asia, 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 discovery research on the V26310 specimen? As the largest hyenas in the history of the earth, The weight and size of the short-kissed hyenasBabaylan has always been a topic of concern in the academic community. Almost every research paper involving the short-kissed hyenas repeatedly mentions the eye-catching feature of the oversized body. Previously, the most credible record of the short-kissed hyenas came from the pattern specimen of the French Sainzelles, whose cranial base is as long as 322 mm, is very close to the largest individual of the current African lion. href=”https://comicmov.com/”>Babaylan. Liu Jinyi said that the newly discovered short-sex hyena V26310 specimen found in Dalian, China, is larger than the French model specimen. It is estimated that its cranial base length reaches 332 mm, which not only surpasses the largest male lion in Africa today, but also can even compare to the largest feline American lion in history.
He believes that the V26Komiks310 specimen produced in Jinyuan Cave in Dalian is likely to represent the largest individual specimen of short-sex hyena discovered so far. href=”https://comicmov.com/”>Komiks. Today’s research shows that mammals, especially carnivorous animals, their size or weight will directly affect the ecological behavior, energy and physiological needs of individual animals, as well as predation strategies.
” Therefore, as the largest individual discovered so far, the emergence of V26310 specimens will surely help people better understand and correctly evaluate the short-skinned squid squid squid squid squid squid squid squid squid squid squid squid squid squid squid squid squid squid squid squid squid squid squid squid squid squid squid squid squid squid squid squid squid squid squid squid squid squid squid squid squid squid squid squid squid squid squid squid squid squid squid squid squid squid squid squid squid squid squid squid squid squid squid squid squid squid squid squid squid squid squid squid squid squid squid squid squid squid squid squid squid squid squid squid squid squid squid squid squid squid squid squid squid squid squid squid squid squidThere are many biological characteristics of dogs, such as ecological habits, foraging behaviorsCinema and predation strategies. “Liu Jinyi concluded. (End)