Assertion: narwhal | /r/CapableOf | lack dorsal fin
Facets:
value: like the beluga whales
type: OTHER
value: on their backs
type: LOCATION
value: like its close relative
type: OTHER
value: to aid in swimming
type: PURPOSE
Source sentences:
text: Narwhals lack a dorsal fin, possibly to aid in swimming under ice.
text: It has a round head, small mouth and a cylindrical body (lacking in dorsal fin).
text: Narwhals lack a dorsal fin, and in adults the flippers are turned upward at the tips.
text: Like the beluga whales, narwhals lack a dorsal fin and instead have a dorsal ridge.
text: Narwhal lack a dorsal fin
text: Narwhal lack a dorsal fin
text: Like its close relative the beluga , it lacks a dorsal fin, but it does have a long, low dorsal hump.
text: Like the beluga whales, narwhals lack a dorsal fin and instead have a dorsal ridge.
text: Narwhals lack a dorsal fin on their backs, but they do have a dorsal ridge about 5 cm high that covers about half their backs.
text: Narwhal is a medium-sized whale and lacks dorsal fin.