Speaking of liver poisoning, I have read in several wilnderness books that shark liver can be deadly. Probably not commonplace, but most likely that acoastal archer might take a shark with a bow.One source said that a single serving could be very serious, indicating that there is a severe concentration of vitamin A in the liver. Yes, it is an essentiel nutrient, but if this source is right, it is toxic in large amounts. I have never eaten any of these predators listed, and under normal circumstances would probly pass them up. But I have eaten horse and liked it.