Now, 40 prints are part of a new exhibition called—what else—X-ray Vision: Fish Inside Out. Thanks to the internet (yay!), you can check out a cool selection on Flickr, each of which comes ...

Smithsonian National Museum of Natural History fish curator Sandra Raredon captured the images of thousands of fish specimens. All up, the institution, in Washington DC, has four million individual ...

Smithsonian scientists use X-ray images like this one to gather important information about the internal biology of a fish without dissecting or in any other way altering the specimen. This X-ray ...

For a limited time, visitors can view striking images of a variety of fish taken with X-ray technology. More than beautiful, these images help tell the story of each species’ evolution.

Then, they put an eel in a tank with a fish and recorded the interaction using X-ray video. Of the 32 eels that were swallowed whole by the fish and reached its stomach, 13 managed to push their ...