Both of these fish are valued for their taste as ... almost beak-like mouth with black gums and tongue. Cod have a slightly ...

Regular fish oil is extracted from the tissue ... or too much acid in the stomach. Animal studies indicate that cod liver oil may help treat ulcers, particularly in the stomach and gut.

For starters, it would certainly seem difficult to maintain both functions simultaneously: saltwater is alkaline, so when fish swallow their weight in water to inflate, they could run the risk of ...