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Sharks and rays do not fall into the category of 'Bony Fishes' which makes up the majority of this Fish Library. They belong to the "Class Chondrichthyes" that includes nonbony fishes. Sharks and rays both fall into the "Subclass Elasmobranchii" which includes jawed fishes with cartilaginous skeletons, multiple gill slits, skin covered with tiny tooth-like scales, and rows of regenerating teeth.
Originally posted by C.H.U.D.
As for those here who say they have seen tumors on fish, I think it's worth noting than not all tumors/growths are cancerous.
Originally posted by SilentShadow
That's what i wonder. For scientists to come out and make a bold claim like NO FISH GET CANCER. They have to know something we don't, especially if fisherman can deny it and say yes they have cancers.
My assumption would be that these fish with growth are non-cancerous.
Originally posted by ElectricUncleSam
Although the science behind this sort of thing is still very new and has caused some serious problems in human volunteers, even death...
Originally posted by Duzey
I'm going to be the third person in the industry to assert that fish do indeed get cancer. Lymphosarcoma and Plasmacytoid Leukemia, to name two.
But hey, keep buying that fish oil to prevent cancer -