I have witnessed the catfish phenom many times on Santee Ray. I've heard it's a territorial thing where one fish swims into another's lair and gets his face munched on as they do battle. Here's a DNR photo of that exact event as seen when on the Santee Cooper lakes.

Name:  Catfisheatsanother.jpg
Views: 325
Size:  48.6 KB

Quote Originally Posted by SeaRay View Post
We ran across two catfish like that. They were very much alive so we netted them and turned them into stew. It was at Santee right in front of Stumphole Landing. The bigger one was about 10 or 12 lbs. and the smaller about 4 lbs. The smaller one's fins were stuck in the larger ones mouth and neither could do anything except flop around on top, which is how we spotted them. I saw no way that the bigger fish could have ever hoped to swallow the smaller one.