Platypus makes historic return to Australian national park after 50 years.

Four female platypuses were reintroduced into Australia's Royal National Park, just south of Sydney, after disappearing from the area for over 50 years. The relocation is a collaborative effort between the University of New South Wales, Taronga Conservation Society Australia, WWF-Australia, and the NSW National Parks and Wildlife Service. The platypus is increasingly threatened by habitat destruction, river degradation, feral predators, and extreme weather events such as droughts and bushfires. Each platypus will be tracked for the next two years to better understand how to intervene and relocate the species in the event of drought, bushfire, or flood.