Adorable pictures of baby hippos aside, it’s a common misconception that animals are “smiling” at you out of sincere happiness. Probably you’re projecting that onto them, writes Lee Dye in a piece from 2010. For more on the perils of assigning human qualities to other animal species, I highly recommend checking out Jeffrey Moussaieff Masson and Susan McCarthy’s When Elephants Weep.
Is Your Dog’s Smile Really a “Smile?”
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