In a dimly lit room with very large aquaria along one wall, the Lone Pine Koala Sanctuary has several platypus in captivity. Here is the best shot I could come up with. The ISO was set to Hi2 on my Nikon D800E and the Aperture was open all the way to f/1.8. No flashes were allowed. There are much smaller animals that I imagined - perhaps 15 -18 inches long. They are busy swimmers.
