The Evolution of Man

[parvez]

(11-14-2016, 04:17 PM)Spalea Wrote:

(11-14-2016, 01:27 PM)parvez Wrote: Thanks for beautiful answer spalea. But technically thinking it becomes difficult for brain to get nourished with blood as heart has to pump vertically upwards. Blood has to flow against gravity. Even then man evolved intelligent. That is something like a great achievement IMO.

I think that you have not to think only in terms of anatomy, of anatomical process. Even if, after all, some bipedial animals such the ostrichs (and all the ratites) are very very efficient runners. But ok, what the man can lost at the level of strength, he gains in hability with his fingers in order to make tools for exemple, to inscribe the first signs (on the tree trunks) and so on. These first signs generating the first writing memory traces. And the beginning of a thought which can be passed from a generation to the following one. At this step he becomes an animal quite different.

Yes they are efficient runners but in terms of intelligence and brain size they are very poor. Their brain size is particularly pathetic. Even if we consider the case of birds their forearms are modified into wings but that did not make them as intelligent though they can fly which rarely other animals can do. Evolution of man is truely mesmerizing topic. There is lot to study. Reply