tag:blogger.com,1999:blog-7785493.post7264977220243999901..comments2024-01-04T04:11:55.717+02:00Comments on Dienekes’ Anthropology Blog: 700,000-year old horse sequencedDienekeshttp://www.blogger.com/profile/02082684850093948970noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-7785493.post-90951243588143546252013-06-30T07:33:50.524+03:002013-06-30T07:33:50.524+03:00"This revealed that the last common ancestor ..."This revealed that the last common ancestor of all modern equids was living about 4.0-4.5 million years ago. Therefore, the evolutionary radiation underlying the origin of horses, donkeys and zebras reaches back in time twice as long as previously thought". <br /><br />And they can all form hybrids, infertile though. Presumably at half that time (2 million years) they could form fully fertile hybrids. If the molecular has any relevance at all we should conclude from that that all Homo species have always been able to form fully fertile hybrids. <br /><br />"It's utterly impossible to make an average guess for something so variable over time". <br /><br />Quite. terrythttps://www.blogger.com/profile/17327062321100035888noreply@blogger.comtag:blogger.com,1999:blog-7785493.post-6366047480681297022013-06-27T07:24:50.701+03:002013-06-27T07:24:50.701+03:00"Additionally, this new clock revealed multip..."Additionally, this new clock revealed multiple episodes of severe demographic fluctuation in horse history, in phase with major climatic changes such as the Last Glacial Maximum, some 20,000 years ago."<br /><br />And here's the part that should be bolded. It means the evolution all happened at once in a few instances. It's utterly impossible to make an average guess for something so variable over time.<br /><br />Species just pop up in the fossil record due to bottlenecks, they don't slowly morph from one thing to another at a set pace.Fiend of 9 worldshttps://www.blogger.com/profile/17712083368615685458noreply@blogger.com