platypus swimming in its lake in australia

anatinus animal australia australian calm caves clear creature drift drifting duckbill elusive encounter endemic environment exotic fauna features float floating frolicking habitat icon iconic jenolan lake living mascot monotreme national native natural nature one ornithorhynchus outside plants platypus pool protected rare reservoir semiaquatic surface surfacing swim swimming symbol unique venomous vulnerable water welfare wild wildlife zoology real blue nsw landscape scene single