Jurgen > That says nothing about cancer... first of all very few cancers
> would leave any evidence on skeletal remains, and secondly we 
> just don't have enough skeletons to get a good sample.

But cancer is a disease of civilation.  As to the paucity of evidence, I have no opinion other than to say that we have for a long time underestimated the ages of bones.  I'll try to find the Cordain citation.

Jim