Sun bears copy each other’s facial expressions to communicate

The world’s smallest bears, sun bears, copy one another’s facial expressions as a means of communication. Few other animals are known to do this Source: https://www.newscientist.com/article/2197319-sun-bears-copy-each-others-facial-expressions-to-communicate/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home