I thought smiles and laughter were learned behavior?
I thought smiles and laughter were learned behavior?
Smiling Is An Inherited Behavior That Begins In The Womb
http://www.doctortipster.com/6920-smiling-is-an-inherited-behavior-that-begins-in-the-womb.html
**Smiling Is An Inherited Behavior That Begins In The Womb**
http://www.doctortipster.com/6920-smiling-is-an-inherited-behavior-that-begins-in-the-womb.html
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