Roland Seitre / Platypus (Ornithorhynchus anatinus) swimming, Australian Reptile Park, New South Wales, Australia

Roland Seitre / Platypus (Ornithorhynchus anatinus) swimming, Australian Reptile Park, New South Wales, Australia

Mitsuaki Iwago / Platypus (Ornithorhynchus anatinus) underwater portrait, Australia

Mitsuaki Iwago / Platypus (Ornithorhynchus anatinus) on shoreline, Kangaroo Island, Australia

Dave Watts / Platypus swimming underwater {Ornithorhynchus anatinus} Australia. Digital composite.

Doug Gimesy / Platypus researcher holding a platypus (Ornithorhynchus anatinus) which was captured as part of a Melbourne Water study to monitor the local population. Chum Creek, Healsville, Victoria, Australia. Ma...

Doug Gimesy / Two researchers examining an anaesthetised platypus (Ornithorhynchus anatinus) and starting to glue a temporary radio transponder to its tail, allowing researchers to track its movements. Snowy River...

Doug Gimesy / Platypus (Ornithorhynchus anatinus) researchers placing gill nets in the Snowy river. Mitta Mitta River, Dartmouth, Victoria, Australia. May, 2018. Model released.

Doug Gimesy / Scientist about to bang star picket stakes into rivers to which a fyke net will be secured. This net will then used to try and capture Platypus (Ornithorhynchus anatinus) Mitta Mitta River, Dartmout...

Doug Gimesy / Platypus researchers taking bill measurements from a Platypus (Ornithorhynchus anatinus).Warburton, Victoria, Australia. October, 2018. Model released.

Doug Gimesy / Gill nets placed in the Snowy river to capture, examine, take measurements and place tracking devices on Platypus (Ornithorhynchus anatinus) Snowy River, Jindabyne, NSW, Australia. September, 2017.

Doug Gimesy / Platypus (Ornithorhynchus anatinus) undergoing surgical implantation of radio transponder Dartmouth, Victoria, Australia. May 2018. Model released.