Quokka - The happiest animal in the world

If you are ever lucky enough to meet a Quokka, chances are you'll break out a big smile. This famous marsupial is synonymous with Perth's favorite holiday spot, Rottnest Island. The island got its name from Dutch explorer Willem de Vlamingh after he named it 'Rotte Nest' (rats nest in Dutch), mistaking the ubiquitous small macropods (the kangaroo and wallaby family) as giant rats.

They have been described as the "world's happiest animal," and a photo of a Quokka snapping a selfie has proven why. The animal became instantly famous and popular after appearing in a selfie with the favorite tennis player Rodger Federer. Since then, people worldwide have traveled to this island to catch a selfie with the cute marsupial.