From deserts to rainforests, coral reefs to mountains, the empty Outback to the busy cities, Australia, the world's largest island, is a land of fascinating contrasts. Facts about Australia contain many superlatives: there are an estimated 27,700 plant species, including living fossils such as the cycad palm, and brilliant wildflowers, such as the waratah, Sturt's desert pea and kangaroo paws; and more than 80 per cent of the 378 mammal species, 828...