crested oyster
... that the crested oyster has been eaten by humans for at least 6,000 years?
... that the <b id="mwBQg"><a href="./Ostrea_equestris" id="mwBQk" rel="mw:WikiLink" title="Ostrea equestris">crested oyster</a></b> has been eaten by humans for at least 6,000<span id="mwBQo" typeof="mw:Entity"> </span>years?