Otoro tuna is rich in fat and absolutely delicious -- but why is it more expensive than so many other cuts of tuna used in sushi? Here's what to know.

There is no way we can damage stocks of blue fin tuna when there are so many in ... "One guy said it was the best otoro - or tuna belly - he had ever eaten. It is definitely a great product." ...

Blue fin tuna ranching is also being done in Mexico, targeting populations of the smaller-sized Pacific blue fin that are thought to be in better shape that their Atlantic cousins. But given that ...