Arranging specimens freely will let biologists get clear shots of hard-to-photograph body parts (like the second pair of jaws at the back of a fish's throat), but that's only half the story. One of the dyes used to stain the animals shines bright red when exposed to certain types of light. "It fluoresces like a Grateful Dead poster," evolutionary biologist W. Leo Smith said in a press release. Photographs using normal light can blur fine features, but the red fluorescence produces sharp pictures that will, for better or for worse, etch every last detail into your memory. Sweet dreams!