I think the black bear with the blue fat was found, or harvested in northern California ??
I believe it was determined this was from the animal eating rodent, rat poison.. ?? For some reason I think it was determined this condition was no threat to humans...
I have to suspect the same type of product was the cause of blue fat and meat in wild boars.. Not sure of the location where this was observed..
I also have to agree, if I found an animal or fish like this I would NOT attempt to use any of it..
In all the years I did ranch, farm, personal property predator control I NEVER used poison for any ground moving critters.. I did use insect poisons.. This for wasp, ground bees, fly control.. For wasp and ground bees I mostly used homemade chemicals for nest and colony control.. I suppose this could leave residue in the ground for a while, but likely not a long lasting affect as many commercial poisons seem to do..