Original: Among well-known Australian fauna are the monotremes ( the platypus and the echidna ) ; a host of marsupials , including the kangaroo , the koala , and the wombat ; the saltwater and freshwater crocodiles ; and birds such as the emu and the kookaburra .
Simplified: These include animals like the kangaroo , the koala , the emu , the kookaburra , and the platypus .