Assertion: dog whelk | /r/HasProperty | bayne
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Source sentences:
text: Mussels > 40 mm seem to be safe from dog whelk attack, and Crothers (1985) suggested that 20 mm long mussels were optimum for a 30 mm long dog whelk (Bayne & Scullard, 1978; Crothers, 1985).