While there are some slight geographic variations in platypus characteristics, these are not considered significant enough to warrant separate subspecies classifications.
For example, platypuses in Queensland tend to be slightly larger than those in Tasmania. However, these differences are not consistent across all individuals within the two regions, and there is significant overlap in size between platypuses from both locations.
Overall, platypuses from Queensland and Tasmania are essentially the same species. The slight variations observed are likely due to local environmental factors, such as food availability and climate, rather than genetic differences.