Assertion: manta ray's fin | /r/HasProperty | triangular pectoral
Facets:
value: in mature males
type: OTHER
Source sentences:
text: Manta rays have triangular pectoral fins, broad heads, and gill slits on their ventral surfaces.
text: In mature males, the dorsal fin is tall and triangular and may reach a height of 1.8 m (6 ft).
text: Manta rays have broad heads, triangular pectoral fins, and horn-shaped cephalic fins located on either side of their mouths.
text: Manta rays have broad heads, triangular pectoral fins, and horn-shaped cephalic fins located on either side of their mouths.