steve wrote:
> william wrote:

>>
>> IIRC no evolution happened during the paleolithic era, so his book 
>> holds no health lessons for us.
>>
>> The excerpt about the cave bones was interesting.
>>
>> William
> 
> The paleolithic is about 2.5 million or so years long.  Anatomical 
> modern man came into being within that period via the ongoing process of 
> evolution.  I would hazard to guess that man at the end of the 
> paleolithic period could not interbreed with his ancestors from the 
> beginning of that period

Or possibly because he had no such ancestors.

Human evolution is still a hypothesis, until someone finds some evidence.