Quokka

If you ever wonder what could be the world’s happiest animal, it should be the Quokka! Quokka are small rat like creatures that are found mostly in Rottnest Island, Australia. Quokka are super cute with a smily face, giving an impression that they are happy and always smiling. These animals are nocturnal, meaning they eat and move around only during the night. Quokka have long and strong hind legs with sharp claws.