Assertion: porpoise's head | /r/HasProperty | external ear flaps
Facets:
Source sentences:
text: Porpoises have a bulbous head, no external ear flaps, a non-flexible neck, a torpedo shaped body, limbs modified into flippers, and a tail fin.
text: Porpoises have a bulbous head, no external ear flaps, a non-flexible neck, a torpedo shaped body, limbs modified into flippers, and a tail fin.