Think you know your fish? Think again because you probably haven't seen them like this before. Sandra Raredon, who has been at the Smithsonian's National Museum of Natural History for 25 years has been involved with using radiology as part of her job responsibilities. Her striking black-and-white radiographs, or x-rays, of fish, stingrays, eels, and seahorses—“anything with a backbone,” she notes—reveal the complex bone structure in a level of detail reminiscent of fine engraving.
Pretty spectacular stuff. You can see the entire collection in the link below.