Australia is the sixth largest country in the world. It's about the same size as the 48 mainland states of the USA and 50 per cent larger than Europe, but has the lowest population density in the world - only two people per square kilometre.
The silent sentinel of the acropora corals - Fan Wall - Taken by Karen Gerhard from Cocos Dive
by George Evatt
This Eastern Stargazer was seen in about 4 metres of water under Rye Pier in Victoria one night in March 2003.