- The platypus is semiaquatic, inhabiting small streams and rivers over an extensive range from the cold highlands of Tasmania and the Australian Alps to the tropical rainforests of coastal Queensland in https://en.wikipedia.org/wiki/Eastern_states_of_Australia Eastern Australia as far north as the base of the Cape York Peninsula. Inland
- It is extinct in South Australia (apart from an introduced population on Kangaroo Island) and is no longer found in the main part of the https://www.mdba.gov.au Murray-Darling Basin. in south eastern Australia.