Assertion: hammerhead shark's fin | /r/HasProperty | pectoral
Facets:
Source sentences:
text: A great hammerhead has also been seen attacking a spotted eagle ray (Aetobatus narinari) in open water by taking a massive bite out of one of its pectoral fins.
text: Scalloped hammerheads are uniformly gray, gray-brown, or olive on their dorsal (upper) surfaces, fading to white on their ventral (lower) surfaces and their pectoral fins are tipped with gray or black ventrally.
text: If threatened, the great hammerhead shark may begin an aggressive display, swimming jerkily with the pectoral fins (the fins on either side of the body) side lowered.