I found a bunch more platypus pictures. Most of them are here. I also have a set showing that I’m not the only guy who ever tried to build a snow-platypus (1 2 3 4). Last, but most certainly not least, I found the mother lode of ultra-high-quality platypus photos by Dave Watts. I’ve been collecting these pictures for a long time, and this set just totally blew me away.