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

Gremlin Recommends reading Freshwater Game Fish of North America

October 28, 2011 | Categories: Fun Stuff,Resources

Freshwater Game Fish of North America: An Illustrated Guide By Peter Thompson

Want to learn about the different types of freshwater fish found in North America? This book provides pictures, scientific information, and details about each of the different family types.