May 8 is World Smile Day, a day to observe human expressions and actions. Prior to this special day, let's have a look at cute animals who appear to smile - and make you smile yourself.
The photo taken on Feb 14, 2014 shows that the camera-friendly seal appears happy to pull a variety of poses - which make it appear contented, shy, happy, embarrassed, and even roaring with laughter. [Photo/icpress.cn]