短鰭鯖鯊和一些金槍魚的身體設計得宜，能夠快速、高效地游泳， 這要歸功於其內部化的紅肌肉以及與力量傳遞系統相關聯的構造。
(The bodies of shortfin mako sharks and some tuna are designed for fast, efficient swimming thanks to internalized red muscle associated with a force-transmission system.)