The optimum age range for koalas at the time of the proposed transfer is between 18 and 48 months. This age range applies to all koalas, whether male or female, of captive or wild origin.Animals outside the optimum age range will only be approved for transfer where the applicant can demonstrate that the animal’s health and behavioural characteristics are such that the risks to the animal are no greater than for optimum-age koalas.