LampreysSuctionPetromyzonCircular DichroismDNA, CircularHagfishesSucking BehaviorBlisterSwimmingJawFishesPhysiology, ComparativeVertebratesMouthSpinal CordVacuumReticular FormationPerciformesPredatory BehaviorMolecular Sequence DataFeeding BehaviorStomatognathic SystemLocomotionPyrrolidonecarboxylic AcidVacuum CurettageDrainageChordata, NonvertebrateBiomechanical PhenomenaPhylogenySharksBiological EvolutionAmino Acid SequenceCatfishes