Australia is home to many unique animal species, some of which are featured on coins. These include the red kangaroo, koala, kookaburra, saltwater crocodile, dingo, platypus, emu, wombat, possum, Tasmanian devil, great white shark, and echidna. Many of these animals have unusual physical traits that help them survive in Australia's diverse habitats, such as the kangaroo's ability to hop at high speeds or the platypus' duck-like bill. Australia's coins celebrate the country's iconic and peculiar wildlife.