The Platypus is semi-aquatic , inhabiting small streams and rivers over an extensive range from the cold highlands of LOCATION@1 and the MISC@1 to the tropical rainforests of coastal LOCATION@2 as far north as the base of the LOCATION@3 .

It has been seen in alpine lakes in LOCATION@1 in the south , and north in LOCATION@2 as far as the LOCATION@3 in tropical rain forest rivers .
