Australia's platypus habitat has shrunk 22% in 30 years, report says

Scientists and conservationists say mammal should be officially listed as nationally threatened species

The amount of platypus habitat in Australia has shrunk by 22% in 30 years and the animal should now be listed as a nationally threatened species, according to new research.

Scientists from the University of New South Wales, along with three of Australia's largest environmental organisations - the Australian Conservation Foundation, WWF-Australia and Humane Society International Australia - have jointly nominated the platypus for an official listing as vulnerable under national environmental laws.