Answer: Australia
Notes: Scientists discovered new fossils of an ancient platypus species in South Australia showing it had teeth, unlike modern platypuses. The Platypus is a semi-aquatic, egg-laying mammal endemic to eastern Australia. It belongs to a rare group of mammals called monotremes (egg-laying mammals). It inhabits freshwater systems ranging from tropical Queensland to Tasmania and the Australian Alps. It spends much of its time in burrows along riverbanks. Its conservation status is Near Threatened (IUCN).
