RIASSUNTO
CONSIDER THE TUNA: ITS NEAR-PERFECT HYDRODYNAMICS and efficient propulsion, powered by warm-blooded muscles deep within the body, make it an outstanding swimmer. The largest ones top 70 kilometers per hour, or around 40 knots-fast for a powerboat, and far faster than any known submarine. . But their size and tasty meatiness have put the most majestic of these fish on the road to extinction. The white meat you get in cans comes from the relatively abundant albacore, a small fish, typically less than 40 kilograms (red canned meat comes from the abundant skipjack, another small tuna). In contrast, bluefin (in Japanese, maguro or hon maguro, true tuna) has always been the rarest tuna. Adults can grow to more than 3 meters and weigh more than 600 kg.