Heather, I think Pat is right about early feeding making its mark on
anatomy. Pat, I got the impression you disagreed with the claim that this
is due to evolution (as do Heather and I) but that you confirm the
existence of an individual effect, as do I.
The way we use our bodies affects how they look. I noticed long ago that
speakers of US English have less developed oral musculature than do
speakers of French or Norwegian or Swedish or German or any other language
that has hyper-rounded vowels. We use our lips, cheeks and tongues much
more over here because we need to distinguish between at least a dozen
diferent specific vowel sounds. In US English you can speak  correctly with
a much more relaxed face :-) When you are alerted to this feature it is
impossible NOT to notice it.

Our teeth stay healthier and better aligned if we bite and chew foods that
offer resistance, like crusty bread, fresh produce, seeds, nuts or meat,
rather than purees or that horrible squishy stuff sold sliced in sealed
plastic bags that passes for bread in parts of the world. This also affects
the way our orofacial muscles work.

It doesn't require genetic changes to have atrophied muscles or crooked
teeth and the increasing prevalence of such problems does not suggest
evolutionary change. That takes eons!
Rachel Myr
Kristiansand, Norway

             ***********************************************

Archives: http://community.lsoft.com/archives/LACTNET.html
To reach list owners: [log in to unmask]
Mail all list management commands to: [log in to unmask]
COMMANDS:
1. To temporarily stop your subscription write in the body of an email: set lactnet nomail
2. To start it again: set lactnet mail
3. To unsubscribe: unsubscribe lactnet
4. To get a comprehensive list of rules and directions: get lactnet welcome