Assertion: black marlin's fin | /r/HasProperty | rigid pectoral
Facets:
Source sentences:
text: Black marlin may be distinguished from all other marlin species by their rigid pectoral fins, which, especially from a weight of around 150 lb (75 kg) or so, are unable to be pressed flat against their sides.
text: The pectoral fins are rigid and cannot folded along the body, unlike other marlin species whose pectoral fins fold easily against the body.
text: Black marlin can also be easily distinguished from other marlins as they are the only marlin that have rigid pectoral fins that cannot be folded flat against the body.
text: Black marlin may be distinguished from all other marlin species by their rigid pectoral fins, which, especially from a weight of around 150 lb (75 kg) or so, are unable to be pressed flat against their sides.
text: It differs from other Marlins and the Sailfish because the pectoral fins are rigid enough to resist collapsing against the body.