Matthew Gervais Quotes
Laughter could have evolvedat least in partvia a process of group selection, whereby groups with more laughter and social play were able to out-compete groups with less laughter and social play. 
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Laughter could have evolvedat least in partvia a process of group selection, whereby groups with more laughter and social play were able to out-compete groups with less laughter and social play.
- Matthew Gervais
