How long is a quokka?

A quokka typically measures about 40 to 54 centimeters (16 to 21 inches) in length, not including its tail, which adds another 25 to 30 centimeters (10 to 12 inches). These small marsupials are known for their stocky bodies and round faces, often leading to their reputation as one of the world's happiest animals. They primarily inhabit Australia, particularly on Rottnest Island.