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

But now a machine called Sonofai uses ultrasound waves to do the job in ... to the U.S. and other places later. They'll also work on future upgrades to test for freshness, firmness and other ...

KAWASAKI, Japan (AP) — Seafood lovers know the fatty marbling is what makes tuna sashimi and sushi so tasty, so for the industry, it’s the fish’s level of fattiness that’s used to judge ...