all i know is they can put up a fight!!! i caught one over 3foot long when i was like 10...pulled me in twice....but i landed it....and dad made me hold that slimy thing up....that was before i carried a camera.....after that i carry one all the time.....big ole nasty lookin fish....i kinda like em......but then again i think catfish are one of the greatest fish to swim.........