Assertion: hermit crab's pair | /r/CapableOf | act as paddle
Facets:
value: similarly
type: MANNER
Source sentences:
text: One group of specialized swimming crabs (the family Portunidae) have an oval shaped body and the last pair of walking legs are flattened and act as paddles that propel the animal.
text: A few species, such as the blue crab, have an adapted pair of back legs which act similarly to a paddle and allow them to move through the water.