Remora -- fish with dorsal fin modified into a suction cup --attach to underside of shark and feed on remains of shark kill -- remora clearly benefiting, while shark is neither helped nor hindered.
(fish with dorsal fin; modified; into a suction cup) (shark; hindered; ) (Remora; attach; on remains of shark kill) (remora; clearly benefiting; ) (shark; is; neither helped nor hindered) (shark; helped; )
fish with dorsal fin shark Remora remora shark shark
modified hindered attach clearly benefiting is helped
into a suction cup
on remains of shark kill
neither helped nor hindered