Assertion: whale's flipper | /r/ObjectUse | used for steering
Facets:
value: mainly
type: DEGREE
Source sentences:
text: Dolphins swim by moving their tail fin and rear body vertically, while their flippers are mainly used for steering.
text: Whales swim by moving their tail fin and lower body up and down, propelling themselves through vertical movement, while their flippers are mainly used for steering.
text: These pectoral flippers are used for steering, turning, and stopping.
text: The blue whale has a very small triangular dorsal fin as compared to the larger dorsal fin of many other whale species and the flippers which are used for steering are relatively short when compared to the rest of its body.