Hyaenodonts: The Razor Jaws скачать в хорошем качестве

Hyaenodonts: The Razor Jaws

(Sorry about the quality of my voice in this video; I've just recently had the Centaurus variant of Covid and I'm still recovering from it!) Emerging rapidly after the K-PG extinction event in Europe, they went on to colonize Africa, Asia and North America by the end of the Paleocene. Early forms were generally quite small and Viverrid-like, being fairly minor carnivores in ecosystems dominated by Mesonychids and Arctocyonids. However, the drier and more open conditions that developed during the second half of the Eocene allowed Hyaenodonts to expand in size and diversity. Some, such as Hyaenodon, would become highly successful predators that ranged from cat to grizzly bear sized, while the Apterodontines developed into semi-aquatic shellfish eaters. Hyaenodonts thrived in Africa due to receiving minimal competition from other groups of carnivorous animals, with some early Miocene forms becoming among the largest predatory land mammals of all time. However, it may have been their relative inflexibility of diet that was their ultimate downfall. Lacking that flat, grinding molars of many carnivorans, Hyaenodonts were more limited to hypercarnivorous niches, with a mouth full of knives being poorly adapted for anything other than slicing meat and crushing bone. When Carnivorans arrived in Africa at the Oligocene-Miocene boundary, the Hyaenodonts may have evolved themselves into a corner in order to avoid competition, making them more vulnerable to environmental changes. https://www.deviantart.com/drpolaris/   / drpolaris   All copyrighted images/footage/music is protected under Fair Use for reasons of criticism, commentary, social satire, and education. All copyrighted images belong to their respected owners. Please notify me if I neglected to credit your work in the video. All copyrighted footage and images in this video are protected under FAIR USE for reasons of Commentary, Education, Criticism, Parody, and Social Satire. Copyright Disclaimer under section 107 of the Copyright Act 1976, allowance is made for “fair use” for purposes such as criticism, comment, news reporting, teaching, scholarship, education and research. Fair use is a use permitted by copyright statute that might otherwise be infringing. Educational use tips the balance in favour of fair use. This means, copyrighted images can be displayed, even without the owner’s permission. If I neglected to give the copyright owners credit, please inform me and I will give you the appropriate credit. All video/game/image/music content is recorded and edited under fair use rights for reasons of commentary, education, and social satire.