Hydroides ezoensis
... that larvae of the tube worm Hydroides ezoensis prefer to settle on a substrate already inhabited by other worms of their own species?
... that <a href="./Larva" id="mwA1o" rel="mw:WikiLink" title="Larva">larvae</a> of the tube worm <i id="mwA1s"><b id="mwA1w"><a href="./Hydroides_ezoensis" id="mwA10" rel="mw:WikiLink" title="Hydroides ezoensis">Hydroides ezoensis</a></b></i> prefer to settle on a <a href="./Substrate_(biology)" id="mwA14" rel="mw:WikiLink" title="Substrate (biology)">substrate</a> already inhabited by other worms of their own species?