While evolution is a given, there is also another aspect, called "epigenetics", which is a modern version of "Lamarckism" of a sort. The idea is that actions taken by a parent can negatively(or even positively) affect the DNA in their germ-cells thus changing offspring's characteristics.
 
Geoff
 
 
> Keith Thomas wrote:> > On Fri, 22 Feb 2008 17:15, william wrote:> >> > > >> Gale wrote:> >> > >>> Referencing William's comment about genetics > >>> not being written in stone: Right. But they are written > >>> in our DNA. And they don't change in our lifetime. You > >>> are the DNA you were born with.> >>>> >>>> >>> > >> Ah, but they do change. > >> > >> > The change is called "evolution".> >> > Keith> >> >
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