NPA personality theory
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Re: Chimps can vary their smiles like humans
Posted by ABenis on August 3, 2017, 6:41 pm, in reply to "Chimps can vary their smiles like humans"
Edited by board administrator August 3, 2017, 6:54 pm
I'm not sure if the researchers really understand what the smile is about, but sooner or later it will be recognized that it is a marker of a major personality trait: sanguinity.
But the chimp smile has not been forgotten. By coincidence. it makes a major appearance in our latest brochure:
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