Assertion: nurse shark | /r/CapableOf | remain motionless
Facets:
value: on the seafloor
type: LOCATION
value: because of its ability
type: CAUSE
value: unlike most sharks
type: OTHER
value: along the bottom
type: LOCATION
value: often
type: TEMPORAL
Source sentences:
text: Unlike most sharks, which require constant motion to move water over their gills and maintain a sufficient internal blood pressure, the nurse shark often remains motionless along the bottom - actively pumping water over its gills through the continual opening and closing of its mouth.
text: Unlike most sharks that must constantly swim to breathe, nurse sharks have developed a pumping mechanism (“buccal pump”) that allows them to remain motionless on the seafloor while pulling a current of water across the gills in order to breathe.
text: The nurse shark can remain motionless on the seafloor because of its ability to pump water across its gills.
text: While most fish, including sharks, must keep moving in order to breath, nurse sharks can remain motionless while resting on the seafloor.