Oct 3, 2024 by News Staff

Play is a widespread behavior present in distant species that, in its social form, relies on complex communication. Playful communication has been largely...

Apr 15, 2019 by News Staff

According to a review of previous studies, published in the Psychological Bulletin, emotional facial expressions — such as smiling — can influence...

Jun 12, 2015 by News Staff

Chimpanzees have the same types of smiles as humans when laughing, says a new study published in the journal PLoS ONE. The study also found that chimpanzees...