An XROMM Study of Food Transport and Swallowing in Channel Catfish
We don't know how fish swallow food, but we do know they regularly swallow things half their own size (or more). We used biplanar X-ray video to track swallowing in 3D in catfishes.
The spandrels of Satan's perches: evidence for the co-optation of feeding traits in the convergent evolution of mouthbrooding in Neotropical cichlids
Does the way fish feed influence the likelihood that they will evolve to use their mouths for parental care?