Right. As you know, Australia has many unique species of animals due to its long geographical isolation, such as kangaroos, wallabies, koalas, wombats, dingoes, possums, platypuses, spiny anteaters and so on.
And, of course, there are some incredible animals in Australia Like kangaroos and emus that live on the coast, and the cute marsupials like koalas and wombats, and unique animals like the platypus and camels.
You can have up to five different species of duckbill living in one place at one time, so in the breeding season, you'd hear five different orchestras, five different ranges of courtship note.
These subtle creatures didn't belong to any of the three main mammal groups on the planet today-which are the placental mammals (like us), monotremes (like the platypus) and marsupials (like koalas and kangaroos).