How are the cleaner shrimp able to feed safety on parasites in the teeth of large predator fish?

Cleaner shrimp feed safely on parasites in the teeth of large predator fish due to mutualistic relationships that have evolved between the two species. The fish recognize the shrimp as beneficial partners, allowing them to clean their teeth without fear of being attacked. Additionally, the shrimp use specific behaviors, such as displaying bright colors and engaging in ritualized movements, to signal their non-threatening intentions. This cooperation benefits both parties: the shrimp get a meal while the fish receive dental hygiene.