Once pushed to the brink of extinction by overfishing, bluefin tuna has experienced a spectacular rebound in recent years.

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.

It builds up in tuna when they consume contaminated prey. And humans are then exposed to the element when they eat the fish, one of the most widely consumed around the world. Getty Images ...

This is why Earl was seen standing proudly next to his catch as onlookers took photos and fellow fishermen praised his skills. Whether the catch will become tuna steaks or poke is to be determined ...

During a Nov. 11 episode, co-host and comedian Bert Kreischer reacted when McConaughey revealed his recipe for a tuna fish salad. First, it starts with a good base of tuna, followed by a careful ...