Here's how they swim:
* Box-shaped body: Their rigid, box-like body acts as a hydrofoil, creating lift and allowing them to glide through the water.
* Dorsal and anal fins: These fins act as rudders, allowing the cowfish to steer and change direction.
* Pectoral fins: They use these fins to propel themselves forward in a jerky, hopping motion.
Think of it like this: Imagine a small, box-shaped boat with a sail. The sail (the cowfish's fins) catches the current and propels the boat (the cowfish's body) forward.
This unique swimming style makes cowfish very agile and allows them to maneuver easily in tight spaces. It also makes them look somewhat clumsy and funny to watch.