A reader writes, “I’m James Bernot, a graduate student studying shark and tapeworm coevolution at the University of Connecticut. Here is a tattoo I have on my calf of a Northwestern Pacific tribal shark, complete with a tetraphyllidean tapeworm near the shark’s pelvic fin.”

It’s hard for me to resist a tattoo of a shark tapeworm.

You can see the rest of the Science Tattoo Emporium here and in Science Ink: Tattoos of the Science Obsessed.

Close-up of tapeworm: