Some fish make sounds by grating their teeth and others, like some catfish, make sounds from their air-filled swim bladder.

The Scoop

January 14, 2014 | Categories: Fun Stuff

A person who studies fish for a living is called an ichthyologist. Try saying it out loud. It’s pronounced ik-thee-ol-uh-jist. Congratulations, you just graduated from the 6th grade.