Assertion: puffer's fin | /r/HasProperty | pectoral
Facets:
Source sentences:
text: Puffers generally move awkwardly using their pectoral fins for locomotion and the tail fin only when they need to move quickly, as in the case of an emergency or newly arrived food.
text: Normally, fish use their tail fin for moving straight, but puffers use mainly their pectoral fins along with dorsal and anal fins for moving.
text: Totally lacking pelvic fins, the Spotted Puffer is able to use its pectoral fins to move about the aquarium with ease.