Though looks can't kill, this one just might. It's a close-up of the eye of Arothron mappa, also known as the scribbled pufferfish. It's hardly a man-eater, but don't try to turn it into sushi: Its flesh contains a neurotoxin that can be deadly.

The image was shot at night by photographer Murray S. Kaufman, while the pufferfish was dozing in a reef in the Sulawesi Sea. Diving off Mabul Island, near the southeast coast of Malaysian Borneo, Kaufman noticed the fish because it was a juvenile and, therefore, more colorful than the adult kind. "I got about a foot away from it when I snapped the picture," he says. "Usually you get one strobe shot and they take off, but I was able to get a few images."...