Seafood lovers know the fatty marbling is what makes tuna sashimi and sushi so tasty, so for the industry, it’s the fish’s ...

Tuna is highly prized by sushi chefs, but quality can vary and the process of checking the fish by hand with saws at the ...

A conveyor belt transports a whole frozen tuna fish, about a meter (3 feet) in size, into a machine that ... it doesn’t use radiation, which can harm tissue. Chris Edwards, a medical doctor ...