Assertion: spiny dogfish | /r/CapableOf | prey on polychaete
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Source sentences:
text: Spiny dogfish also prey on flatfishes, blennies, sculpins, jellyfish, polychaetes, sipunculids (group of marine worms), amphipods (small, shrimp-like crustaceans), shrimp, crab, snails, octopods, squids, and sea cucumbers.