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submissive smile Archive
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![Humans are the only species that smiles. Other apes do not smile, nor do dogs smile. Apes “fear grin” and dogs bare their teeth in “agonistic puckers” and “submissive grins.” […]](https://i1.wp.com/www.border-wars.com/wp-content/uploads/2013/07/human_ape_dog_grimace_fear_smile.jpg?resize=115%2C115 "Dogs Don’t Smile")
Dogs Don’t Smile
Posted on July 7, 2013 | 28 CommentsHumans are the only species that smiles. Other apes do not smile, nor do dogs smile. Apes “fear grin” and dogs bare their teeth in “agonistic puckers” and “submissive grins.” […]
