Trying to capture images of these fast little creatures took more patience than I had at first My wife told me to go back and try again if I wasn't happy with my first results. And so I did, laying down on the boardwalk, hanging my pre-focused macro lens only inches above the water and shooting hundreds of images to capture one of these speedy devils in frame and in focus. These are very unusual fish and make for a good read if you research the Salt Creek Pupfish. Death Valley National Park, California, USA. listed as IUCN Red List Endangered species.