Koala strikes a pose in a tree

A koala has become a hit with visitors thanks to its unusually relaxed demeanor - reminiscent of a Calvin Klein ad.

Pluto, three, was born at the Australian Reptile Park in Somersby, New South Wales, Australia, through the park's breeding program.

He shares his enclosure with two other koalas, Rupert and Iggy, and the trio are close friends.

But Pluto, known for his chill attitude and funny lounging pose, has become the visitors' favourite.

A spokesperson for the park said “He is one of the most chill and relaxed koalas we have.