Assertion: whale's fin | /r/HasProperty | curve
Facets:
Source sentences:
text: her dorsal fin is smaller and curves, while the male dorsal fins is rather triangular and straight.
text: • The flippers are short, tapered and are 3 to 4 meters (9.8 to 13 ft) long, the dorsal fin is curved, small and can be up to 12 inches long.
text: The dorsal fin of older males is very tall (up to 1.8 metres [5.9 feet]) and straight; females and young males have a dorsal fin that is about half that size and distinctly sickle-shaped (falcate).