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That's an interesting question. I have a puppy, and the amount of stuff and debris that goes into their mouths is truly amazing. We typically think it amazing, endearing, or gross, or some vestige of previously useful behaviors, but maybe it also involves the beneficial sharing of microbes, and maybe it goes both ways.
It certainly has hard wired aspects. Maybe that's what kissing amongst adult humans is all about--little did we know.
C
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On May 6, 2013, at 12:32 PM, Jennie Dusheck <[log in to unmask]> wrote:
> ISEN-ASTC-L is a service of the Association of Science-Technology Centers
> Incorporated, a worldwide network of science museums and related institutions.
> *****************************************************************************
>
> Nope. Cleanliness isn't next to godliness.
>
> It was the same story for polio. Kids whose mothers scrubbed the floor were more likely to get polio later in life (which is more dangerous).
>
> And the same probably applies to chewing food for toothless infants (pre-mastication) versus feeding them exclusively commercial baby food or grinding it up in a blender.
> http://www.lifeslittlemysteries.com/2306-pre-chew-baby-food.html
>
> I was struck, when my children were infants, that when they took an interest in solid food, it was not my plate of food they went after but my mouth. They aggressively put their hands up to my mouth. Silverstone says the same thing, though there's no sign of that in the video. I would be interested to know if this behavior is hard wired.
>
> Jennie Dusheck
>
>
>
> On May 6, 2013, at 11:35 AM, Charles Carlson wrote:
>> http://pediatrics.aappublications.org/content/early/2013/04/30/peds.2012-3345.full.pdf
>>
>>
>> A fascinating, small study on the benefits of sucking the baby pacifier clean. Maybe cleanliness isn't next to godliness after all? Well, at least some forms of cleanliness!
>
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