Happy faces of animals on International Day of Happiness

​A Baikal seal named Billy looks as if he's enjoying a Japanese-style hot spring with a towel on his head and a sake bottle in front of him during a show at the Hakone-en Aquarium in Tokyo, Japan on December 9, 2010. International Day of Happiness is celebrated worldwide each year on March 20. It was founded to inspire, mobilize, and advance the global happiness movement. [Photo: IC]