[PatrickHenry]

From the article:
By analyzing the changes in the DNA, they have been able to distinguish positive mutations, those selected because they are good or adaptive, from negative or harmful mutations. In today's issue of the journal Science, they report that several lineages of mitochondrial DNA show signs of positive selection.

Shocking. How can this be? The creationists keep insisting that all mutations are harmful.

[Aracelis]

The creationists keep insisting that all mutations are harmful.

I suppose it depends on one's point of view. Scandinavians are noted for taking very hot saunas and then immediately rolling in the snow, eating Lutefisk and Sylta (you don't want to know), and as my dearly deceased relatives would tell it - walking 10 miles barefoot in the snow each way to school (actually, I've tried walking barefoot in the snow...exhilarating!). I think it's up for debate as to whether these are the result of beneficial mitochondrial mutations or not. Then of course, my family could just be plain nuts! LOL

[DallasMike]

The creationists keep insisting that all mutations are harmful.

That's news to me. I believe that God created everything but I'm agnostic on how He did it. There's no doubt that evolution is a fact but, as someone with degrees in both chemistry and chemical engineering, I'm just not quite sold on the popular notion that pretty much anything can happen via evolution given enough time. The chemistry is very complicated.

[raynearhood]

"Shocking. How can this be? The creationists keep insisting that all mutations are harmful."

Actually, that is incorrect, sir. Just that where there are beneficial mutations there has never been, nor is mathematically possible to have, enough subsequent beneficial mutations to actually cause any adaptive species change. A dog is a dog is a dog, and never will be otherwise.

"By analyzing the changes in the DNA, they have been able to distinguish positive mutations, those selected because they are good or adaptive, from negative or harmful mutations. In today's issue of the journal Science, they report that several lineages of mitochondrial DNA show signs of positive selection."

Another thing of which one must be careful. Beneficial mutations occurring are often presented as fact when it is, in fact, the extrapolated interpretation of observation by scientists based on the model of science they use. This is called THEORY.
Another scientist could interpret the facts this way:
"By analyzing the changes in the DNA, they have been able to distinguish positive changes, those caused by the specimen's ability to genetically vary within its kind, from negative or harmful mutations."

In the end, neither creationism nor evolutionism is proved or advanced.

Sorry to all.

Present undeniable, observable fact for either side, and I'll bite.