👉 Stridulation is a biological process that occurs in certain species of fish called pufferfish. It refers to the rhythmic movement of the fins or gills of these fish, often associated with their ability to swim at high speeds and cover large distances. Stridulation can be seen in many different forms of pufferfish, but it is most commonly observed in the larger species like the Pacific Pufferfish (Pterophyllum lutris).
