Profile close up shot of a sleepy koala, phascolarctos cinereus holding on to tree trunk and slowly falling asleep, Australian native animal species

koala marsupial eucalypt eucalyptus aussie queensland australia australian arboreal healesville zoo port stephens wildlife endangered branch conservation bear animal habitat doze off species sit cute phascolarctos cinereus reserve fluffy nap asleep grey currumbin sleepy sleep threatened tree wild fur rest vulnerable chill sedentary victoria natural native tropical moonlit park sanctuary fall lone pine