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Oldest Modern Humans Found
DrLudicrous writes "Anthropologists have reconstructed and dated three skulls from Ethiopia that they believe to be the oldest anatomically modern human skulls in existance. They date to 160,000 years ago, in agreement with genetic studies that pin the arrival of modern humans to at least 150,000 years ago. The skulls also demonstrate evidence of ritual burial." UC Berkeley has the original release as well.
along with the skulls are some tools, and their way of burial is more than a simple "covering up with dirt and let's move on", which sort of indicates these ancestors are pretty smart and know what they were doing.
are we going to discover even earlier "modern" human remains in order to find out how we really came from??
Is that, Okay, Great^n Grandpawas around 160,000 years ago, complete with stone tools and burial practices.
Yet Civilization only 'started 6-10,000 years ago.
Why does this just not quite add up to me. I mean, our ancestors were not stupid, they posessed the same intuition and logic that we do today. Whay did it take so long to get where we are now though?
Just food for thought.
You say you want a revolution....
I think that the most important part of this discovery, though is that it pretty much rules out the descent of homo sapiens from homo neanderathalensis. I know that there was a lot of evidence of that, anyway, but this seems pretty conclusive.
Still, I think that more interesting discoveries would be from 5 million years ogo. In particular, I would like to see remains of the ancestors of Australopithecenes and Ardopithecenes which would support the evolution of modern chimpanzees and modern humans from a common ancestor.
http://yetanotherpoliticalrant.blogspot.com
In an article in Science this April ("Balancing Selection at the Prion Protein Gene Consistent with Prehistoric Kurulike Epidemics"), British scientists suggest that our ancestor's urge to eat brains may have lead to the modern absence of prion-based diseases (such as mad cow disease) in humans. This suggests that, to some extent, at some point evolution selected for brain eating in humans. The actual article requires a paid subscription, but here's a summary from a newspaper.
The artist's illustration in the Berkeley article (also used on the cover of the current edition of Nature) is misleading, in as much as it gives the figure kinky hair and thick lips, making for a more "African" look than is likely to have been the case.
The truth of the matter is that the earliest men almost certainly would have had straight hair, not curly or kinky but straight, and thin lips, just like most Europeans and Asians today. The wild-type for hair in primates is straight, and all of the great apes conform to that type. Similarly, no ape has thick lips, and our closest living relatives are pretty much lipless. Given these facts, why would any reasonable person expect the "first" men to look like modern day Africans?
Of course, it is logically impossible to rule out that our species evolved to gain the features of modern-day Africans only to lose them once again, but this flies in the face of both probability and Occam's razor - it is extremely unlikely that a feature, once lost, can then be regained down the line, simultaneously around all of the world outside Africa.
One mistake people tend to make is to assume that because our species originated in Africa, modern day Africans are somehow "closer" to what we must have originally been like, but this is nonsense. Africans are just as far removed from the original homo sapiens populations as any other population groups, so they've had just as much time to diverge from the original type. Africans, like any other populations, haven't stood still in evolutionary terms, contrary to the misleading notion that this article illustration propagates.