When it comes to Australia, it is not officially a continent. It has to be joined with Papua New Guinea, Indonesia, New Zealand, and the Pacific Islands and then it becomes Oceania (Australasia is Aussie, NZ, and PNG). I'm not sure how it all works, but trust me; New Zealand has different flora, fauna, AND animals (we have a flightless ground-burrowing parrot grin ) from the rest of the world. We're not a continent because we are not big enough. The official continents are:

North America
South America
Europe
Asia
Africa
Oceania
Antarctica

-Penguin

Only after the last tree has been cut down
Only after the last river has been poisioned
Only after the last fish has been caught

Then you will find that money cannot be eaten.