A fascinating question that marine scientists have explored is fish communication. Finding a mate, locating food sources, and defending territory are challenges all animals face. Terrestrial animals solve this problem by pushing air through their lungs, with different land animals having various designs to do this. Birds and lions produce sounds for communication differently, but both systems involve air in some form. So, the question is, how do fish communicate?
Researchers from Cornell University placed equipment in the ocean off Hawaii and Curacao to study this question and found that each fish species has its own method for communicating with others. Triggerfish slap their pectoral fins on specialized scales. Glasseye snappers rattle their swim bladders. Blackbar soldierfish use sonic muscles to vibrate their ribs. Aaron Rice, who was the project manager for Cornell, states that the “sounds lack the elegance of birdsong, but they are significantly more diverse.”
The more scientists learn about life on our planet, the more varieties of specialized designs they observe everywhere on Earth. Explaining the origin of things like fish communication as a chance occurrence in the distant past pushes credibility too far. Seeing these as outcomes of design is an example of intelligent purpose, allowing a vast diversity of life forms to exist.
— John N. Clayton © 2025
References: Cornell Chronicle, sciencedirect.com, and fisheyecollaborative.org
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