Our planet is home to some truly fascinating ... happy personality or even a happy appearance. Here are 10 of the happiest animals on Earth and where you can find them. The animals on this list ...

They are each around 40 to 50 centimeters tall. Quokkas are often called “the happiest animal in the world” for their smiling appearance. But they are designated as endangered species.

With its beady eyes and chubby face, the quokka, a type of small kangaroo, is referred to as “the world’s happiest animal” because its mouth often curves in the shape of a smile. The Saitama ...