Imagine watching a video of a chimpanzee. The ape pulls its lips back in a wide, playful grin. Without realizing it, the ...

Humans perceive emotional expressions displayed by non-human primates and spontaneously mimic these expressions, according to a study published in the open-access journal PLOS One by Ursula Hess from ...

Do you find it difficult to choose the perfect smiley-face emoji when trying to convey happy emotions in a text message? Although many emojis look very similar, it seems there are countless slightly ...