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 in China, as well as 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 should I study shortCinema kissing a huge hyena? Researcher Liu Jinyi from the Institute of Vertebrate Paleontology and Paleoanthropology, the Chinese Academy of Sciences (Komiks Institute of Paleopause), who led the research, introduced that the short-kissed macadamia is much larger than the close species in life, such as spotted hyenas and paleoenas, 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 latter. After all, its number of individuals is much larger than that of 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 the focus species that attracted much attention in the succession of the Pleistocene fauna. Komiks and innovation research. 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 in the European continent about 200,000 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, and the premolars are extremely thick and thick enamel.a href=”https://comicmov.com/”>Komiks quality, 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 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 their 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 species, which may contain 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 years, 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 related academic issues, such as the origin of the short-skinned hyena, the spread dynamics and migration paths between the continents. 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 controversial academic hot topics that have attracted much attention in the field of the origin and evolution of short-sex hyenas, Liu Jinyi, with 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 the Eurasian continent, and at the same time, the Babaylan href=”https://comicmov.com/”>Komiks System classification, origin and intercontinental migration and diffusion, and paleoecology related academic issues were conducted in-depth discussions and analysis.
The latest paper on the evolution of CinemaBabaylan that completely subverts traditional cognition of Cinema 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-kiss 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 group of Europe. The short-kiss hyenas V26310 specimen was found in the Jinyuan Cave in Dalian, which completely subverted this tradition and inherent understanding.
What is the basis for the “Northeast Asia Origin Theory”?
When comparing and studying short-kissed hyenas from different regions or ages, the cooperative team found that these hyenas do have several subtle differences and differences in size and morphology, 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 the differentiation of Cinema, but are actually the manifestation of the branch of Komiks 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. 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, peopleThe exact origin of the European continent’s short-kissed hyena is vague, 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 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 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 born in Northeast Asia as early as possible, and then Komiks spread to other parts of Asia and eventually 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 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-kissed hyena is from a pattern specimen from Sainzelles, France. Its cranial base is as long as 322 mm, which is very close to the largest individual of the current African lion. Liu Jinyi said that the newly discovered short-kissed 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 lion in Africa today, but also can even compete with the largest feline 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 short-skinned slutty lily.There are many biological characteristics of dogs, such as ecological habits, foraging behaviors and predation strategies. “Liu Jinyi concluded. (End)