There are many different species of wildlife in Australia. Marsupials are the most successful group in Australia. This group includes kangaroos, wallabies, koalas, Tasmanian wolves, Tasmanian devils, wombats, and many others. The platypus and the echidna are egg-laying mammals. There are also numerous different species of birds. Some of them are cockatoo, kookaburra, lyrebird, the flightless emu, and several types of parrots.