An Anisakis worm is seen in a filet of salmon. These parasitic worms can be up to 2 centimeters in length and are found in the flesh of raw and undercooked fish. Disclaimer: AAAS and EurekAlert!
Related: Eating Like a Salmon Is Better Than Eating Actual ... you may see them — or you may not. “The worms in fish are usually small and white or almost clear in color,” says Shannon ...