Name: Pacific Bluefin Tuna
Information: Bluefin tuna are some of the largest and fastest fish in the ocean, they're powerful swimmers, built for endurance and speed. To help conserve energy on its long-distance journeys, a tuna's body is almost perfectly streamlined, reducing drag around its fins. And a tuna can retract those fins so water flows more smoothly over its body. This makes the tuna super-streamlined.