Assertion: platypus's foot | /r/ObjectUse | used for steering
Facets:
value: in combination with their tail
type: MANNER
Source sentences:
text: The back feet are used for steering and the front for propelling.
text: They are also excellent swimmers and spend a great deal of time in the water looking for food, they move themselves, when swimming, with a rowing motion using their two front feet alternatively, the hind feet are not used in this propulsion but are used for steering, in combination with their tail.
text: The forefeet help propel it forward and its hind feet are used for braking and steering.