How much room does a platypus need to survive?

Platypuses require relatively large territories, with the specific area varying depending on the species and the availability of food and shelter. For example, the eastern platypus (Ornithorhynchus anatinus) typically requires a home range of around 3 to 5 kilometers (1.8 to 3.1 miles) along a waterway, while the western platypus (Ornithorhynchus gilli) may need up to 15 kilometers (9.3 miles) of river frontage. However, these are just general estimates and the actual space requirements can vary widely.